(~ATS&)I FORD 4R44E I 4R55E
INDEX
General
Description..........................................................3
Vehicle
Application...........................................................6
Bearings Bushings and
Gaskets......................................7
Computer
Sensors............................................................11
Diagnosis and
Testing......................................................19
Transmission
Disassembly...........................................31
Valve
Body.........................................................................53
Pump
Assembly.................................................................61
Clutch
Drums.....................................................................65
Overdrive
Planetary...........................................................81
Torque
Converter..............................................................86
Transmission
Assembly....................................................87
AUTOMATIC TRANSMISSION SERVICE GROUP9200 S. Dadeland Blvd.Suite
720MIAMI FLORIDA 33156(305) 670-4161
2
..
INTRODUCTIONFORD 4R44E 4R55E
The 4R44E/4R55E is a 4 speed fully computerized transmission. At
a first glance it resembles the familiar A4LD. The shift cycles and
the transmission oil pressure are computer controlled. These
transmissions feature a four element torque converter including the
converter clutch. There are three compund planetary gearsets, three
bands, three multi-disc clutch packs and two one-way clutch
assemblies.
This manual covers the inspection, teardown and assembly of this
transmission along with the basic Diagnostic trouble codes. The
ATSG PASS books cover computer diagnosing of these
transmissions.
We thank the Ford Motor Company for the illustrations and
informationthat have made this booklet possible
ROBERT D. CHERRNAYTECHNICAL DIRECTOR
DALE ENGLANDFIELD SERVICE CONSULTANT
WAYNE COLONNATECHNICAL SUPERVISOR
ED KRUSETECHNICAL CONSULTANT
PETELUBANTECHNICAL CONSULTANT
JIM DIALTECHNICAL CONSULTANT
GREGORY LIPNICKTECHNICAL CONSULTANT
JERRY GOTTTECHNICAL CONSULTANT
DAVID CHALKERTECHNICAL CONSULTANT
AUTOMATIC TRANSMISSION SERVICE GROUP9200 S. DADELAND BLVD.SUITE
720MIAMI, FL 33156 (305) 670-4161
I(~ATSGJ
FORD 4R44E/4R55E FULLY COMPUTERIZED A4LD GENERAL DESCRIPTION
The 4R44E/4R55EEautomatic (rear wheel drive) transmissions are
four-speed units with electronic shift controls.
The 4R44E is used with 2.3L and 3.0L engine applications. The
4R55Etransmission is used with 4.0L engine applications.
These transmissions feature a four element torque converter
including TCC (Torque Conveter Clutch).The gear train includes:
Three compound planetary gear setsThree bandsThree multi-plate
clutchesTwo one-way clutchesThe hydraulic functions are directed by
electronic solenoids to control: EngagementfeelShift feelShift
schedulingModulated TCC applicationsTiming of the 3-2 T>D>
and K>D>shiftsEngine braking (with O/D cancelled) utilizing
the Coast ClutchManual first timingThermostat bypass and cooler
unit
3
I(r:.ifl ATSG ) Service Information 4R44E 4R55E
TRANSMISSION RANGE SELECTOR AND SHIFT PATTERNS
The 4R44E/4R55Etransmission range selector lever has six
positions: P exceeds scale set for Either high or low which
will(open circuit) temperature -40C (-40F). result in harsh or soft
shifts.
IAT temperature higher or Rerun on-board
diagnostic114P0114IATIAT out of on-boarddiagnostic rangelower than
expected duringKOEO and KOER.at normal operating temperature.
116Pl 116ECTECTout of on-boardECT temperature higher or lower
than expected duringRerun on-board diagnostic at normal
operating
dis.gnostic rangeKOEO and KOER.temperature.
Voltage drop across ECT Torque converter clutch will117 P0117
ECT
ECT indicates exceeds scale set for125c (254F> temperature
125 C (254 F)
always be off, resulting in(grounded). reduced fuel
economy.Voltage drop across ECT Torque converter clutch will118
P0118 ECT
ECT indicates exceeds scale set for-40c C-40F> temperature
-40C (40F)
always be off, resulting in(open circuit). reduced fuel
economy.
TP voltage TP was not in lhe correct Rerun at appropriate121 Pl
124 TP
high/ low foron-board diagnostic.
position for on-board throttle position per diagnostic.
application.P0121, Harsh engagements, firmP0122,122. 123, P0123,
PCM has detected an error. shift feel, abnormal shift124, 125, Pl
120, TP TP concern This error may cause a schedule, torque
converter167 Pt 121, transmission concern. clutch does not
engage.Pl 125, Torque converter clutchP1124 cycling.High/ low EPC
pressure,157, 158, P0102, MAF system has a incorrect shift
schedule.159, 184, P0103, MAF MAF concerns malfunction which may
Incorrect torque converter185 P1100, cause a transmission clutch
engagementPl 101 concern. scheduling. Symptomssimilar to a TP
failure.212 P0300-P0308 Harsh engagements and211-219 El system has
a malfunction221-224 P0320, El El concerns which may cause a
shifts, late WOT shifts, no232-239 P0340 transmission concern.
torque converter clutch241-243 P1351-P1364 engagement.PCM detected
a loss of Torque converter clutch452 P0500 vss Insufficient input
vehicle speed signal during engages, shiftfromVSS. operation.
engagement I disengage-ment (hunting) on grades.PCM detected on
erratic Torque converter clutch- P1500 vss Intermittent VSS vehicle
speed signal during engages, shiftoperation. engagement I
disengage-ment (hunting) on grades.
522 P1705 TR TR not i
Brake nn PARK. On-board diagnostic in PARK.not runRerun on-board
diagnostic in PARK.
Failed ON or not connected
- torque converter clutch
otwill not engage at less than
536P1703actuateBOO on-board during Brake not cycled durd
KOER.ing1/3 throttle.Failed OFF or note
diagnostic.connected - torque
converter clutch will not
disengage when brake is applied.
28
I(~RTS6) Service Information4R44E 4R55E
Three-Digit Four-DigitOTC OTC Component Description Condition
Symptom
Failed ON or note connected - torque converter clutch will not
engage at less than 1 / 3
-P1703 BOO BOO switch circuit Brake ON I OFF circuit
throttle.failed. failure during KOEO. Failed OFF or notconnected -
torque converter clutch will not disengage when brake is applied.A
IC or Defrost ON condition OTC set during on-boardA/C clutch
cycling may result from A IC clutch diagnostic - rerun with539
P1460 A/C pressure switch being ON during on-board AICOFF.error
diagnostic. Failed ON - EPC pressureslightly low with A IC
OFF.Improper gear selection depending on failure orSS1, SS2, mode
and manual lever position. Shift errors may645. P07310 SS3or tst
gear error No 1st gear.internal parts
also be due to other internal transmission concerns (stuck
valves, damaged friction material).Improper gear selection
depending on failure orSS1, SS2, mode and manual lever646. P0732"
SS3or 2nd gear error No 2nd gear. position. Shift errors may
internal parts also be due to otherinternal transmissionconcerns
(stuck valves. damaged friction material).Improper gear selection
depending on failure orSS1, SS2, mode and manual lever647. P0733''
SS3or 3rd gear error No 3rd gear. position. Shift errors
mayinternal parts
also be due to otherinternal transmission concerns (stuck
valves, damaged friction material).Improper gear selection
depending on failure orSS1. SS2, mode and manual lever648'. P0734''
SS3or 4th gear error No 4th gear. position. Shift errors
mayInternal parts also be due to otherinternal transmissionconcerns
(stuck valves, damaged friction material).
SS 1 circuit failed to provide Improper gear selection voltage
drop across depending on condition621' P0750' SS1 SS 1 solenoid
solenoid. Circuit open or mode and manual levercircuit failure
shorted or PCM driver position. See Solenoidfailure during
on-boarddiagnostic. Ont Off charts.SS2 circuit fails to provide
Improper gear selection voltage drop across depending on
condition622' P0755' SS2 SS2 solenoid solenoid. Circuit open or
mode and manual levercircuit failure shorted or PCM driver
position. See Solenoidfailure during on-boarddiagnostic.
On I 011 charts.
Failed ON - Overdrive cancel mode always ON. NO flashing TCIL
for EPC631 -
TCIL TCIL circuit failure TCIL circuit open or failure or
sensor.shorted. Failed OFF - Overdrivecancel mode never indicated.
NO flashing TCIL for EPC sensor failure.
29
I(~RTSli) Service Information 4R44E 4R55E
Three-Digit Four-DigitOTC OTC Component Description Condition
SymptomShort Circuit - Causes minimum EPC pressureEPC solenoid
Voltage through EPC (minimum capacity) end624 P1747" EPC circuit
failure, solenoid is checked. An limits engine torqueshorted
circuit. error will be noted if (alternate firm). Zero EPCtolerance
is exceeded. - no 2nd and 4th gear.Slips in 1st and 3rd with high
torque input.Voltage through EPC Shorted PCM - Causess2s - EPC
Shorted PCM solenoid is checked. An maximum EPC pressure, output
driver. error will be noted if harsh engagements andtolerance is
exceeded. shifts.
The PCM picked up en TCC slippage I erratic or no62s P0741
TCC
TCC slippage excessive amount of TCCdetected. slippage during
normal
torque converter clutchvehicle operation. operation. Flash
TCIL.
TCS not cycled during self Rerun on-board diagnostic632 P1780
TCS TCS not changing test. TCS circuit open or end cycle switch.
No)states.
shorted.
cancel when switch iscycled.
TFTout ofTransmission not et636P1711TFTon-boardoperating
temperaturediagnostic range.-40C (-40F)during on-board
diagnostic.Voltage drop across TFTWarm vehicle to normal operating
temperature.
637 P0713 TFT indicated TFT sensor exceeds scale set Firm shift
feel. sensor circuit for temperature -40 Copen. (-40F)157C (315F)
Voltage drop across TFT638 P0712 TFT indicated TFT sensor exceeds
scale set Firm shift feel. sensor circuit for temperature of
157Cgrounded. (315F)Insufficient input PCM detected a loss of TSS
Harsh shifts, abnormal shift639 P07f5 TSS from Turbine Shaft signal
during operation. schedule, no torqueSpeed Sensor. converter clutch
activation.Short circuit - EngineTCC solenoid circuit fails to
stalls in second (OD, 2TCC solenoidcircuit failure provide voltage
drop across range) at low idle speeds652 P0743' TCC during on-board
solenoid. Circuit open or with brake applied. shorted or PCM drive
failure Open circuit - Torquediagnostic.
during on-board diagnostic. converter clutch never
engages.Transmission Transmission fluid657 P1783 TFT overtemp
temperature exceeded Increase in EPC
pressure.conditionindicated.
127C (270F).
667 P0707 TR
TR circuit below TR sensor. circuit or PCM Increase in EPC
pressure. minimum voltage. shorted or grounded.
668 P0708 TR
TR circuit above TR sensor, circuit or PCM Increase in EPC
pressure. maximum voltage. indicates open.
Shift solenoid No. Mechanical or hydraulic Improper gear
selectionNIA P0751 SS1 1 functional failure(California only).
failure of the shift solenoid.
depending on failure modeend manual lever position.
Shift solenoid No. Mechanical or hydraulic Improper gear
selectionNIA P0756 SS2 2 functional failure failure of the shift
solenoid. depending on failure mode(California only) and manual
lever position.
TCC solenoid
TCC solenoid has failed ON
NIA P1743 TCC failed ON. by electric, mechanical or Harsh
shifts. hydraulic concern.
30(~RTs&I Service Information 4R44E 4R55E
Three-DigitFour-Digit
DTC
633DTC
P1781Component
4x4LDeacrlptlon4x4-iOW iiwltch Sfailure. dConditionwitch closed
or shorted uring KOEO.Symptom
Early or delayed shifts.
691P17294x4L4x4 low switchfailure. Circuit open/ shorted.Early
or delayed shifts.
NIA P1751. SS1
Shift solenoid No.1 functional failure(49-State).
Mechanical or hydraulic failure of the shift solenoid.
Improper gear selection depending on failure mode and
manuallever position.
NIA P1756 .. SS2
Shift solenoid No.2 functional failure(49-State).
Mechanical or hydraulic failure of the shift solenoid.
Improper gear selection depending on failure mode and
manuallever position.
NIA
P0761
SS3
Shift aolenold No.3 functional failure(California).
Mechanical or hydraulic failure of the shift solenoid.
Improper gear selection depending on failure mode and
manuallever position.
Shift solenoid No. Mechanical or hydraulic Improper gear
selectionNIA P 11e1 SS3 3 functional failure failure of the shift
solenoid. depending on failure mode(49-State). and manuallever
position.
Failed ON - EPC slightly high, firm engagements, firm shifts,
harsh519P1650 PSP PSP circuit open PSP circuit open. coastdown
shifts. during KOEO. Failed OFF - EPCpreBSureslightly low
duringIncreased loading of vehicle power steering.PSP not changing
Operator did not rotate Fault detected. RerunSelf521 P1651 PSP
atateKOER.
steering wheel during Test and rotate steeringKOER. wheel.
SS3 circuit failed to provide Improper gear selection voltage
drop acroeeSS3 solenoid solenoid. Circuit open or depending on
condition641 P0760 SS3
circuit failure. shorted or PCM driver failure during
on-board
mode and manualleverposition. See Solenoiddiagnostic. On/Off
chart.
CCS circuit failed to provide Failed on - no coaat voltage drop
acro88 braking except In 4th gear.
-643 p1754 ccs
CCS solenold solenoid. Circuit open orcircuit failure. shorted
or PCM driver
Delayed 3-2 shifts. Failedfailure during on-board off - coaat
braking 2nd, diagnostic.3rd. Firm 3-2 and 4-3 shifts.
Voltage through EPC Open Circuit - Causes e24 P1746 .. EPC EPC
aolenold solenoid la checked. Error maximumEPCpreHure,circuit open.
la noted If tolerance la harsh engagementsandexceeded. shift
a.Reverse EPC preHure la low, no EPCpra11urelow, SS 1 laP1701
Tranaml11ion engagement error drop In TSS rpm, TR off, engine lacks
power.Indicates reverse
31
I(rJIRTSGI Service Information 4R44E 4R55E
TRANSMISSION DISASSEMBLY
Transmission
SPECIAL SERVICE TOOL(S) REQUIRED
Description Tool Number
Torque Converter Handles T81P-7902-C Seal Remover T7 4P-77248-A
Impact Slide Hammer T50T-100-A Extension Housing Bushing Remover
T77L-7697-E A4LD Holding Fixture Adapter T93T-77002-AH
Bench-Mounted Holding Fixture T57L-500-B A4LD Transmission Test
Plate T86L-7006-A
Disassembly1.WARNING: DO NOT REMOVE THE TORQUE CONVERTER OR
TRANSFER CASE FROM THE TRANSMISSION WHILE STILL ON THE JACK. DOING
SO COULD CAUSE THE TRANSMISSION TO FALL OFF THE JACK.Relocate the
transmission to the top of a flat workbench.
2.
If the vehicle has a transfer case, use a 13mm socket to remove
the five transfer case to extension housing bolts. Remove the
transfer case and set aside for assembly.
TRANSFER CASE-7A195
3.WARNING: THE TORQUE CONVERTER IS HEAVY, ESPECIALLY WHEN FULL
OF FLUID.Remove the torque converter using TorqueConverter Handles
T81P-7902-C.
TORQUE CONVERTER HANDLES-T81 P-7902-C
TORQUE CONVERTER7902
32
(f'JIATSG) Service Information 4R44E 4R55E
4.NOTE: The splines on the input shaft are not the same on both
ends. The end with the shorter spline goes into the assembly.Remove
the input shaft.
INPUT SHAFT7017
5.Remove the extension housing seal using Seal Remover T7 4P-
77248-A and Impact Slide Hammer TSOT-100-A.
6.NOTE: Remove the extension housing bushing only if service is
required.Inspect the extension housing bushing and driveshaft slip
yoke for nicks, gouges, scoring and wear.Remove the extension
housing bushing usingExtension Housing Bushing
RemoverT77L-7697-E.
EXTENSION HOUSING7A039
EXTENSION HOUSINGBUSHING REMOVERT??L-7697-E
7. CAUTION: The parking pawl, parking pawl return spring and
parking pawl shaft could fall out during removal of the extension
housing.Use a 17mm socket to remove the four M 10 x30mm extension
housing to transmission case screws and two studs.
EXTENSION HOUSING7A039
SEAL REMOVER T74P-77248-A
IMPACT SLIDE HAMMER T90T-100-A
CASE7005
EXTENSION HOUSING7A039
33(r:.Rts&I Service Information 4R44E 4R55E
8.Remove the parking pawl, parking pawl return spring and
parking pawl shaft.
PARKING
10. Attach the fixture arm assembly (part ofT57L-500-B) with two
7I16 x 2-inch bolts and nuts.RODGUIDECUP (PRESS FIT)
PARKINGPAWLRETURNSPRING7D070
FIXTURE ARM (PART OF BENCH MOUNTED HOLDING
FIXTURE-T57TL-500-B)
PARKING PAWL7A441
PARKING PAWL SHAFT7D071
9. CAUTION: The parking pawl actuating rod must slip freely into
the clearance hole In the adapter plate.NOTE: See the special
service tool section for a drawing of this optional adapter
plate.Use the four M 10 x 30mm extension housing to transmission
case screws to attach the adapter plate to the transmission.
A4LD HOLDING FIXTURE ADAPTER T93T-77002-AH
PARKING PAWL ACTUATING ROD7A232
11. WARNING: MAKE SURE THE LOCK PIN ON BENCH-MOUNTED HOLDING
FIXTURE T57L500-B IS SECURE.Install the transmission assembly
toBench-Mounted Holding Fixture T57-500-B. Rotate to the position
shown. Place a drain pan under the assembly.
BENCH MOUNTED HOLDING FIXTURE T57L-900-B
34
I(~ATS61 Service Information 4R44E 4R55E
12. NOTE: A transmission heat shield is on all
4.0Lapplications.Remove the M6 x 1.0 transmission heat shield nut
from the studded bolt.
TRANSMISSION HEAT SHIELD7F013
13. Carefully pry the transmission heat shield off of the fluid
pan rail near the retaining clips.
14. WARNING: MAKE SURE THE LOCK PIN ON BENCH-MOUNTED HOLDING
FIXTURE T57L-500-B IS SECURE.Rotate the transmission assembly so
the converter housing is facing up. 15. Remove the manual control
outer lever nut and manual control outer lever.
16. Remove the two M6 x 25 transmission range (TR)sensor bolts
and remove the TR sensor.
TRANSMISSION RANGE (TR) SENSOR7A247
17. WARNING: MAKE SURE THE LOCK PIN ON BENCH-MOUNTED HOLDING
FIXTURET57L-500-B IS SECURE.Rotate transmission assembly so that
the fluid pan is facing up.18. CAUTION: Do not reuse the fluid pan
gasket.Use a 13mm socket to remove the eighteen MB x1.4mm fluid pan
screws. Remove the fluid panand fluid pan gasket. Discard the fluid
pan gasket.
35
I(r:.ATSlil Service Information 4R44E 4R55E
Fluid Pan Removal
FLUID PAN SCREWS W701203-S309M (18 REO'D)
FLUID PAN7A194
WIRE LOOM GUIDE AND PROTECTOR
21. Disconnect the six solenoid connectors from the solenoids by
carefully pulling upward and moving side to side.
19. Use a 10mm socket to remove the M6 x 55mm fluid pan filter
assembly screw. Remove the fluid pan filter assembly.
Fluid Pan Fiiter Removal
SOLENOID CONNECTOR
20. Carefully lift up on the wire loom guide and protector.
Disengage the retaining pins from the solenoid brackets.
36
I (r..aATSGI Service Information 4R44E 4R55E
22. Use a 10mm socket to remove the M6 x 30mm manual valve
detent spring screw. Remove the manual valve detent spring.
Part
1EB00156-SScrew, M6 x 20mm270306Reverse Servo Cover37L173Reverse
Servo to CaseGasket4EB60167-SRetaining Ring57423Reverse Servo
Piston SealRing-Large67E266Reverse Servo Piston77423Reverse Piston
Seal Ring - Small870300Rear Servo Cushion
SpringRetainer970190Reverse Servo RodItem Number Description
23. Use a 10mm socket to remove the four M6 x20mm reverse servo
cover screws. Remove the reverse servo cover, reverse servo piston
and rod and reverse servo.
REVERSE SERVO COVER70036
24. NOTE: Refer to the main control disassembly and assembly in
this section.Use a 1 Omm socket to remove the seventeen M6 x 40mm,
four M6 x 45mm and three M6 x 35mm main control valve body
screws.
DO NOT REMOVE THESE BOLTS
37
I(~RTSGI Service Information 4R44E 4R55E
25. Remove the main control assembly.
26. NOTE: The J-hook must be in the appropriate hole for the
servo being removed.Install Servo Cover Compressor T95L-77028-A
ov.er the intermediate servo cover at the fluid pan rail. Tighten
the bolts.
27. Using a 1I2-inch wrench, tighten the nut on the J-hook until
there is a gap between the servo cover and the snap ring.
29. CAUTION: The servo cover is under spring tension.Carefully
back off the nut on the J-hook until the servo spring is
unloaded.30. WARNING: AIR PRESSURE SHOULD NOT BE GREATER THAN 138
KPA (20 PSI). WEAR SAFETY GLASSES WHEN USING COMPRESSED AIR. THE
PISTON ASSEMBLY CAN POP OUT UNEXPECTEDLY DUE TO SPRING PRESSURE
BEHIND THE PISTON. DO NOT STAND DIRECTLY IN FRONT OF THE
PISTON.NOTE: Light tapping on the cover and case, or air pressure
applied on the release side may be needed. Use 4R44E/ 4R55E
Transmission Test Plate T95L-77000-AH and Transmission Test Plate
Gasket T95L-7006A.NOTE: Tag the spring, piston and cover assembly.
Label accordingly for assembly. The covers have letters cast on the
outer surface for identification.Remove the intermediate servo
cover, piston and spring.
INTERMEDIATE SERVO AND SEAL ASSEMBLY-70027
INTERMEDIATE SERVO PISTON SPRING-70028
SERVO COVER COMPRESSOR T95L-77028-A
28. Carefully remove the servo cover snap ring.
INTERMEDIATE SERVO PISTON AND ROD ASSEMBLY-7D021
38I (r:.ATSG) Service Information 4R44E 4R55E
31. Remove Servo Cover CompressorT95L-77028-A.32. NOTE: The
J-hook must be in the appropriate hole for the servo being
removed.Install Servo Compressor T95L-77028-A over the overdrive
servo cover at the fluid pan rail. Tighten the bolts.
33. Using a 1 I 2-inch wrench, tighten the nut on the J-hook
until there is a gap between the servo cover and the retaining
ring.
SERVO COVER COMPRESSOR T95L- 77028-A
34. Carefully remove the servo cover retaining ring.
RETAINING RING E860343-S
36. WARNING: AIR PRESSURE SHOULD NOT BE GREATER THAN 138 KPA (20
PSI). WEAR SAFETY GLASSES WHEN USING COMPRESSED AIR. THE PISTON
ASSEMBLY CAN POP OUT UNEXPECTEDLY DUE TO SPRING PRESSURE BEHIND THE
PISTON. DO NOT STAND DIRECTLY IN FRONT OF THE PISTON.
NOTE: Light tapping on the cover and case, or air pressure
applied on the release side may be needed. Use 4R44E I 4R55E
Transmission Test Plate T95L-77000-AH.NOTE: Tag the spring, piston
and cover assembly. Label accordingly for assembly. The covers have
letters cast on the outer surface for identification.
Remove the overdrive servo cover, piston and spring.
OVERDRIVE SERVO PISTON AND ROD ASSEMBLY-70021
OVERDRIVE COVER AND SEAL ASSEMBLY-7l493
OVERDRIVE SERVO PISTON SPRING-70028
37. Remove Servo Cover CompressorT95L-77028-A.
35. CAUTION: The servo cover Is under spring tension.
Carefully ~a~k off the nut on the J-hook until the servo spnng
rs unloaded.
38. WARNING: MAKE SURE THE LOCK PIN ON BENCH-MOUNTED HOLDING
FIXTURE T57L-500-B IS SECURE.Rotate the transmission assembly with
the converter housing facing up.
39
I(r.::ilJ:ITS6 ) Service Information 4R44E 4R55E
39. CAUTION: Throw the locknuts away. The locknuts are not
reusable for assembly.Remove the overdrive and intermediate band
locknuts and back off the band adjusting screws.OVERDRIVE BAND
OVERDRIVE BAND LOCKNUTADJUSTING SCREWE825100-S 100 7C492
*II
41. NOTE: Rotate and lift the converter housing so that the
clutch assemblies will stay in place.Remove the converter housing
and front pump support and gear assembly.CONVERTER HOUSING7976
40.
INTERMEDIATE BAND ADJUSTING SCREW7c492
42. NOTE: Refer to converter housing and pump assembly under
subassemblies for service information.Remove the fluid pump gasket
and No. 1 front pump thrust washer and discard gasket. Tag the No.
1 front pump thrust washer for identification.
N0.1 FRONTPUMP THRUST WASHER7D014
FRONT FLUID PUMP GASKET7A136
40
I(ea ATS&) Service Information 4R44E 4R55E
43. Compress the overdrive band around the overdrive brake and
coast clutch drum. Remove the overdrive band anchor strut and
adjusting screw.
OVERDRIVE BAND ANCHOR STRUT7D430
44. CAUTION: Identify which end of the overdrive band Is the
anchor side or tht apply side.Remove the overdrive band.
APPLY SIDE
OVERDRIVE BAND7D034
45. Remove the overdrive brake and coast clutch drum.
OVERDRIVE BRAKE AND COAST CLUTCH DRUM7L669
46. Remove the overdrive band apply strut.
OVERDRIVEBANDAPf'L Y STRUT70029
41
(r:.ATsGJ Service Information 4R44E 4R55E
47. NOTE: Tag and identify the overdrive lever for assembly. The
overdrive lever has a letter stamped into its side.NOTE: The
overdrive band actuating lever shaft is longer than the
intermediate shaft.Remove the overdrive band actuating lever
shaft.
OVERDRIVE BAND ACTIVATING LEVER SHAFT7D433
48. CAUTION: Do not bend the exciter wheel.
NOTE: No.12 and No. 2 thrust bearings are in this
assembly.Remove the planet gear overdrive carrier.
PLANET GEAR OVERDRIVE CARRIER78446
49. Remove the servo band lever and overdrive control
bracket.
OVERDRIVE BAND LEVER TO CASE BRACKET-7A653
OVERDRIVE BAND SERVO LEVER .7330
50. Remove the overdrive ring gear, overdrive one-way clutch and
overdrive center shaft assembly.
OVERDRIVE RING GEAR OVERDRIVE ONE-WAY CLUTcH AND OVERDRIVE
CENTER SHAFT ASSEMBLY
42(r:.RTSlil Service Information 4R44E 4R55E
51. NOTE: Tag and identify the No. 3 center shaft thrust bearing
assembly for assembly.Remove the No. 3 center shaft thrust bearing
assembly.
I r f'':::::::E;:::::::::::~~if'NO_ 3 CENTER SHAFTTHRUST BEARING
ASSEMBLY70014
52. CAUTION: The center support locking nut could fall Into the
remaining assembly If not removed.Use a 5mm Allen wrench to remove
the M6 x20mm center support capscrew. Remove the locking nut from
the center support.CENTER SUPPORT CAPSCREW E804373S
LOCKING NUT AND CAGE EB26160-S76
53. CAUTION: Do not pry on other wires or damage the connector
or case surface.Carefully disconnect the turbine shaft speed sensor
{TSS) connector from the 16-pin case connector.
l J L ,::=J< J('-----0~~c:'. 0
{
TURBINE SHAFT SPEED(TSS)SENSORCONNECTOR(PART OF 7M101)
..43
I(~RTSGJ Service Information 4R44E 4R55E
54. Use a T30 Torx bit to remove the TSS screw.Remove the
TSS.
55.
CASE CONNECTOR RETAINING RING84280020
)
\"'84~DJ/'~~ ---
56. CAUTION: Do not overstretch the case connector retaining
ring.
Use a screwdriver to carefully remove the case connector
retaining ring.
57. CAUTION: Do not damage the connector or harness.Carefully
push down on the top of the connector until it stops. Depress the
tab on the back side of the connector and push down on the
connector. Remove the connector and harness through the bottom of
the case.
58. Remove the center support retaining ring.
CENTER SUPPORT RETAINING RING W702465-S300
44
(~RT56) Service Information 4R44E 4R55E
59. Remove the center support by pulling evenly around the
center support web.
CENTER SUPPORT7A130
60. NOTE: Tag and identify the No. 4 intermediate brake drum
thrust bearing for assembly.Remove the No. 4 intermediate brake
drum thrust bearing.
INTERMEDIATE BAND ADJUSTING SCREW
u17C949
~
~nINTERMEDIATE BAND ANCHOR STRUT
62. CAUTION: Identify which end of the intermediate band is the
anchor side or the apply side.
..Remove the intermediate band.
APPLYSIDE
NO. 4 INTERMEDIATE BRAKE DRUM THRUST BEARING7L326
61. Remove the intermediate band anchor strut through the bottom
of the case. Remove intermediate band adjusting screw.
ANCHORSIDE
INTERMEDIATE BAND7D034
45
I(r:.RTSGI Service Information 4R44E 4R55E
63. Remove the intermediate band apply strut.
INTERMEDIATE BAND APPLY STRUT7D029
64. NOTE: The intermediate band actuating lever shaft is shorter
than the overdrive band actuating lever shaft.
Remove the intermediate band actuating lever shaft.
INTERMEDIATE BAND ACTUATING LEVER SHAFT- 7D433
65. NOTE: Tag and identify the intermediate band servo lever for
assembly. The intermediate band servo lever has a letter stamped on
its side for identification.Remove the intermediate band servo
lever.
66. CAUTION: Make sure the lock pin onBench-Mounted Holding
Fixture T57L-500-Bis secure.Rotate the transmission so the fluid
pan surface is facing up.
46
I
(~RTSG) Service Information 4R44E 4R55E
67. NOTE: The No. 5 forward clutch cylinder thrust washer may
come out with the intermediate brake and direct clutch drum.Remove
the intermediate brake and direct clutch drum.
.:
INTERMEDIATE BRAKE AND DIRECT CLUTCH DRUM7D044
68. Remove the No. 5 forward clutch cylinder thrust washer.
69. NOTE: The No. 5 forward clutch cylinder thrust washer may
come out with the forward clutch cylinder.Remove the forward clutch
cylinder.
FORWARD CLUTCH CYLINDER7A360
70. Remove the forward ring gear and forward ring gear hub.
I
/
FORWARD RING GEAR AND FORWARD RING GEAR HUB
N0.5 FORWARD CLUTCH CYLINDER THRUST WASHER7C096
47
I(r:.ATS61 Service Information4R44E 4R55E
71. Remove the No. 7 forward planet thrust bearing.
FORWARD PLANET THRUST BEARING (NO. 7)7F374
72. NOTE: The forward planet assembly is model dependent.Remove
the forward planet assembly.
FORWARD SUN GEAR7D063
INPUT SHELL7D064
7 4. NOTE: 4.0L engines do not have this retaining ring.Remove
the reverse planet retaining ring.
IFORWARDPLANET ASSEMBLY7A398
73. Remove the input shell with forward sun gear.
REVERSE PLANET RETAINING RING E860119-S
75. NOTE: The No. 8 reverse planet carrier thrust washer is
model dependent.NOTE: Tag and identify the No. 8 reverse planet
carrier thrust washer for assembly.Remove the reverse planet
assembly and No. 8 reverse planet carrier thrust washer.
48
I(~RT56) Service Information4R44E 4R55E
2.3L, 3.0L
NO. 8 REVERSE PLANET CARRIER THRUST WASHER7A166 REVERSE
PLANETASSEMBLY70006
4.0L
NO. 8 REVERSE PLANET CARRIER THRUST WASHER7A166
REVERSE PLANET ASSEMBLY70006
76. NOTE: The No. 9 reverse planet carrier thrust washer is
model dependent.Remove the No. 9 reverse planet carrier thrust
washer ..
NO. 9 REVERSE PLANET CARRIER THRUST WASHER7A166
77. NOTE: The output shaft sleeve is on 4.0Lapplications
only.Remove the output shaft sleeve.
OUTPUT SHAFT SLEEVE-7B176
49
I(~RTSGI Service Information 4R44E 4R55E
78. CAUTION: Discard the output shaft retaining ring. A new
retaining ring must be used for assembly.Remove the output shaft
retaining ring from inside the case on the output shaft.
/ (//
NO. 10 OUTPUT SHAFT HUB THRUST WASHER70422
OUTPUT SHAFT RETAINING RING E860927-S
79. Remove the output shaft ring gear and output shaft hub.
OUTPUT SHAFT RING GEAR AND OUTPUT SHAFT HUB
80. NOTE: The No. 10 output shaft hub thrust washer is model
dependent.NOTE: Tag and identify the No. 10 output shaft hub thrust
washer for assembly.Remove the No. 10 output shaft hub thrust
washer.
81. NOTE: The inner race of the rear one-way clutch is not
removable. It is serviced in the case.Remove the reverse brake drum
and the one-way clutch assembly.
Reverse BrakeDrum and One Way ClutchAssemblyRemoval, 2.3L,
3.0L
REPLACING GUIDE TOOL T74P-77193-A
REVERSE BRAKE DRUM7C498
50
I(r.3AT561
Service Information 4R44E 4R55E
Reverse Brake Drum and One Way Clutch AssemblyRemoval, 4.0L
REVERSE BRAKE DRUM7C498
82. Remove the reverse band.
84. Remove the park gear.
REVERSE BAND70095
83. CAUTION:The output shaft Is model dependent. The 4.0L output
shaft does not use lube holes.Remove the output shaft.
PARK GEAR7M092
51
I(r.;aRtsGI Service Information4R44E 4R55E
85. NOTE: Tag and identify the No. 11 output shaft thrust washer
for assembly.Remove the No. 11 output shaft thrust washer.
N0.11OUTPUT SHAFTTHRUST WASHER78368
PARKING PAWL ACTUATING ROD7A232
MANUAL VALVE INNER LEVER7A115
86. CAUTION: To avoid damage, make sure wrench does not strike
the manual valve Inner lever pin.Remove the manual valve inner
lever nut.
MANUAL VALVE INNER LEVER7A115
MANUAL VALVE INNER LEVER NUT W701271-S309
87. Remove the manual valve inner lever and parking pawl
actuating rod assembly.
88. CAUTION: Do not damage the case fluid pan rail.Using ~small
hammer and drift, tap lightly on each side of the manual control
lever shaft retaining pin (two or three times). This will loosen
the pin prior to removal.
MANUAL CONTROL LEVER SHAFT RETAINING PIN E840125-E
MANUAL CONTROL LEVER SHAFT7A308
52
I(~ATSG) Service Information 4R44E 4R55E
89. CAUTION: Do not damage the case fluid pan rail.Remove the
manual control lever shaft retaining pin with a narrow, sharp edged
screwdriver from the side as shown.
MANUAL CONTROL LEVER SHAFT RETAINING PIN E840125-S
90. Remove the manual control lever shaft.
91. CAUTION: Do not damage the bore.Remove the manual control
lever seal.
53(~RTSG) Service Information 4R44E 4R55EDISASSEMBLY AND
ASSEMBLY OF SUBASSEMBLIES
Main Control Valve Body
Main Control Valve Body
I
~
54(r:iiRTsGI Service Information 4R44E 4R55EDISASSEMBLY AND
ASSEMBLY OF SUBASSEMBLIES
PartItem Number Description1 - Manual Valve(Part of 7A100)2 -
Valve Plug Retainer(Part of 7A100)3 - Valve Retainer Plug(Part of 7
A 100)4 - Forward Modulator Valve(Part of 7A100)5 - Forward
Modulator Spring(Part of 7A100)6 - Valve Plug Retainer(Part of
7A100)7 - Valve Retainer Plug(Part of 7A100)8 - EPC Boost
Valve(Part of 7A100)9 - EPC Boost Spring(Part of 7 A 100)10 - Valve
Plug Retainer(Part of 7A100)11 - Pressure Boost ValveSleeve(Part of
7A100)12 - Pressure Boost Valve(Part of 7A100)
1415--(Part of 7A100)Oil Pressure RegulatorSpring(Part of
7A100)Main Regulator Spring42-Solenoid Regulator Spring(2.3L, 1
Req'd)Solenoid Regulator Outer Spring (3.0L, 4.0L) Solenoid
Regulator Inner16-Retainer(Part of 7A100)Pressure Regulator
Valve43-Spring (3.0L, 4.0L)(Part of 7 A 100)Valve Retainer
Plug(Part of 7A100)(Part of 7 A 100)17-Valve Retainer Plug44-Coast
Clutch Valve(Part of 7 A 100)(Part of 7 A 100)18-Forward
EngagementControl Spring45-Coast Clutch Spring(Part of 7 A
100)1920-7M107(Part of 7A100)Forward EngagementControl Valve(Part
of 7 A 100)Shift Solenoids and Coast464748---Valve Retainer
Plug(Part of 7A100)Solenoid Regulator Valve(Part of 7 A
100)Solenoid Regulator Spring21-Clutch Solenoid (4 Req'd)3-2
Spring496916(Part of 7 A 100)EPC Solenoid22-(Part of 7A100)3-2
Valve50-Valve Plug Retainer(Part of 7 A 100)(Part of 7A100)51-Valve
Retainer Plug23-Manual Low Spring(Part of 7 A 100)(Part of
7A100)52-1-2 Shift Valve24-Manual Low Valve(Part of 7 A 100)(Part
of 7A100)53-1-2 Shift Valve25-Valve Retainer Plug(Part of 7 A
100)(Part of 7A100)54-1-2 Shift Spring26-3-2 Valve(Part of 7 A
100)(Part of 7 A 100)55-Valve Retainer Plug27-3-4 Shift Valve(Part
of 7 A 100)28-(Part of 7A100)3-4 Shift Spring56-2-3 Shift
Spring(Part of 7 A 100)(Part of 7A100)57-23 Shift
ValveContinued)(Part of 7 A 100)(Continued)13 - Pressure Boost
Spring
PartItem Number Description29 - Valve Plug Retainer(Part of 7 A
100)30 - Thermostat Bypass Spring(Part of 7 A 100)31 - Thermostat
Bypass Valve(Part of 7 A 100)32 - Thermostat Bypass Valve(Part of
7A100)33 - Thermostat Bypass Spring(Part of 7 A 100)34 - Valve
Retainer Plug(Part of 7A100)35 - Cooler Limit Spring(Part of 7A
100)36 - Cooler Limit Valve(Part of 7 A 100)37 7F037 Torque
Converter Clutch(TCC) Solenoid38 - Converter Clutch Valve(Part of 7
A 100)39 - Converter Clutch Spring(Part of 7 A 100)40 - Valve
Retainer Plug(Part of 7 A 100)41 - Solenoid Regulator Valve(Part of
7A 100)
(
55(r,;aAT56) Service Information 4R44E 4R55EDISASSEMBLY AND
ASSEMBLY OF SUBASSEMBLIES
PartItem Number Description58 - Valve Retainer Plug(Part of 7 A
100)59 - Reverse Modulation Valve(Part of 7 A 100)60 - Reverse
Modulation Spring(Part of 7A 100)61 - Valve Retainer Plug(Part of 7
A 100)62 - Reverse Modulation Valve(Part of 7 A 100)63 - Extension
Housing LubeOrifice(Part of 7A 100)64 - Relief Valve - EPC Limit I
Converter (Part of 7 A 100)65 - Relief Spring(Part of 7 A 100)66 -
Check Balls (4 Req'd) (Part of 7 A 100)
PartItem Number Description67 7L491 Solenoid Bracket - EPC, SS2,
SS4, TCC68 7L491 Solenoid Bracket - SS 1, SS369 E800341-S Solenoid
Bracket Screws(2 Req'd)70 - Identification Plate(Part of 7A100)71
7A100 Main Control Valve Body72 70100 Control Valve BodySeparating
Gasket73 - Valve Body Separating Plate(Part of 7A 100)74
E804357-S76 Separating Plate-to-MainControl Screws(3 Req'd)75 - EPC
Limit Circuit Screen(Part of 7A100)(Continued)
Disassembly
PartItem Number Description6 7M107 Shift Solenoid 3
1. NOTE: SS3 may pop out of its bore.Use a 1 Omm socket to
remove the SS 1 and SS3 solenoid bracket bolts. Remove the solenoid
bracket and the solenoids.
SS1 AND SS3SOLENOIDBRACKET7L491
ItemPartNumberDescription17F037Torque Converter
ClutchSolenoid27M107Coast Clutch Solenoid37M107Shift Solenoid
246916EPC Solenoid57M107Shift Solenoid 1(Continued)
56(eaATsGJ Service Information 4R44E 4R55E
2. NOTE: The TCC solenoid may pop out of its bore.The converter
modulator valve may come out after the TCC solenoid has been
removed.Remove the TCC, CCS, SS2 and EPC solenoid bracket bolt.
TCC, CCS, SS2 AND EPC SOLENOID BRACKET7L491
4. CAUTION: Valves may come out when rotating the main
control.Carefully rotate the main control assembly so that the
control valve body-to-case gasket is facing up. Remove and discard
the control valve body-to-case gasket.
\
CONTROL VALVE BODY-TO-CASE GASKET-7C155
3. Remove the solenoid bracket and the solenoids.
TCC. SS4, SS2 AND EPC SOLENOID BRACKET7L491
5.Use a T30 Torx bit to remove the three separating
plate-to-main control screws.
SEPARATING PLATE-TO-MAIN CONTROL SCREWS-EB04357-S76(3 REO'D)
57(~RT56) Service Information 4R44E 4R55E
6. CAUTION: The extension housing lube orifice and relief valves
may stick to the separating plate.Remove the valve body separating
plate.
-0 aCl
9. Remove the EPC limit relief valve and spring.
EPC LIMIT RELIEF VALVE AND EPC LIMIT RELIEF SPRING
0 00
Oo ...
-i>
VALVE BODY SEPARATING PLATE7A008
7.Remove and discard the control valve body separating
gasket.
10. Remove the converter relief valve and spring.
CONTROL VALVE BODY SEPARATING GASKET7D100
8.Carefully remove the extension housing lube orifice.
EXTENSION HOUSING LUBE ORIFICE7D376
11. Remove the EPC limit circuit screen.
58
II (r:..AT56) Service Information 4R44E 4R55E
12. Remove the four check balls.
19. Remove and replace all shift and coast clutch solenoid
0-rings.
SHIFT SOLENOID7M107 (4 REQ'D)
20. Clean and inspect the torque converter clutch(TCC)
solenoid.
CHECK BALLS7E195(4 REO'D)
13. CAUTION: Do not lose parts when cleaning or servicing.
Thoroughly clean all parts in solvent and blow dry with
moisture-free compressed air.14. Inspect all valve and plug bores
for scores. Check all fluid passages for obstructions. Inspect the
check valve for free movement. Inspect all mating
Assembly
TORQUE CONVERTER CLUTCH (TCC) SOLENOID-7F037surfaces for burrs
or distortion. Inspect all plugs and valves for burrs or scores.
Replace thecontrol valve body if the bores are scored or if the
valves are scored beyond the point of being able to be cleaned.
15. Inspect all springs for distortion. Check all valves and
plugs for free movement in their respective bores. Valves and
plugs, when dry, must fall from their own weight in their
respective bores.
16. Roll the manual valve on a flat surface to check for a bent
condition.17. Clean and inspect the EPC limit circuit screen.
EPC LIMIT CIRCUIT SCREEN7N113
18. Clean and inspect the EPC solenoid screens.
EPC SOLENOID6916
1.CAUTION: Make sure that the screen is properly located.Install
the EPC limit circuit screen. Push down on the EPC limit circuit
screen to make sure it is fully seated.
EPC LIMIT CIRCUIT SCREEN7N113
59
I(~RTSGI Service Information4R44E 4R55E
2. Install the four check balls in proper locations as shown .
..--------,
CHECK BALLS7E195(4 REO'D)3. NOTE: The springs and valves are
interchangeable.Install the converter relief valve and soring.
CONVERTER RELIEF VALVE AND CONVERTER RELIEF SPRING
Install the extension housing lube orifice.
EXTENSION HOUSING LUBE ORIFICE70376
6.Install and align the control valve body separating
gasket.
CONTROL VALVE BODY SEPARATING GASKET7D100
7. Install the valve body separating plate. Install the
separating plate-to-main control screwsfinger-tight.
VALVE BODY SEPARATING PLATE7A008
.60
II (r:iiRTSG) Service Information 4R44E 4R55E
8. Install the alignment pins in the locations shown.
ALIGNMENT PINST95L-70010C (LARGE) T95L-70010-D (SMALL)
..
"
e
@9. Tighten the separating plate-to-main control screws to 8-11
Nm (71-97 lb-in).
EPC SOLENOID6916..
SHIFT SOLENOID27M107
TORQUE CONVERTERCLUTCH (TCC) SOLENOID7F037
0
.... 0:ebn e
SHIFT SOLENOID47M10714. CAUTION:The solenoid bracket must
beInstalled In the TCC and EPCsolenoid0II
SEPARATING PLATE-TO-MAIN CONTROL SCREWS E804357-S76 (3
REQ'D)
10. NOTE: Apply petroleum jelly on the separator surface to hold
the gasket in place.Install the control valve body-to-case
gasket... -~ 0 ..0
grooves, shift solenoid pockets and the No.204plug.Install the
solenoid bracket. Tighten the solenoid bracket screw to 8-11 Nm
(71-97 lb-in).
TCC, CCS, 552 AND EPC SOLENOID BRACKET7L491
11. Remove the alignment pins.12. Rotate the main control so
that the separator elate is facing down.13. CAUTION:The shift and
coast clutch solenoid terminals must face upward.NOTE: The shift
and CCS solenoids are interchangeable.NOTE: If the torque converter
clutch valve came out, use caution when installing the TCC
solenoid.Install the solenoids.
15. Install shift solenoids 1 and ~
SHIFT SOLENOID 17M107
.SHIFT SOLENOID 37M107
61
I(r3ATS6J
Service Information 4R44E 4R55E
16. Install the solenoid bracket. Tighten the bracket screw to
8-11 Nm (71-97 lb-in).
Converter Housing and Pump
SPECIAL SERVICE TOOL(S) REQUIRED
Deacrlptlon Tool NumberSeal Replacer T87L 77248-AH Front Pump
Seal Staking Tool T87L-77248-BH Front Pump Seal Staking Tool
Adapter T95L-77248-A
Converter Housing and Pump
PartItem Number Description3 7D014 No. 1 Front Pump
ThrustWasher4 7A103 Front Pump Support andGear5 W701431-S300 Front
Fluid PumpShaft-to-Inner Gear 0-Ring6 7L323 Front Pump Support
SealRing7 7A136 Front Fluid Pump Gasket8 78472 Fluid Pump Adapter
Plate9 7976 Converter Housing10 E804595-S200 Converter
Housing-to-CaseScrews (8 Req'd)11 7A248 Converter
Hub-to-ConverterHousing Seal
Disassembly1. Remove the front fluid pump gasket.
~\'FRONT FLUIDPUMP GASKET7A136
PartItem Number Description1 70025 Overdrive Brake Drum
SealRings (2 Req'd)2 E804375-S72 Front Pump-to-ConverterHousing
Screws(6 Req'd)
62
I(r:.AtsGJ Service Information4R44E 4R55E
2. Remove the front fluid pump square cut seal ring.
FRONT FLUID PUMP SQUARE CUT SEAL RING7A248
3. Remove the two overdrive brake drum seal rings.Remove the
front pump support seal ring.
OVERDRIVE BRAKE DRUM SEAL RINGS(2 REC'D)7D025
4. Use a Torx 40 wrench to remove the six MB x35mm front
pump-to-converter housing screws. Remove the front pump support and
gear and the front pump adapter plate.
FRONTPUMP-TO-CONVERTER HOUSING SCREWS E804375-S72(8 REC'D)
5. NOTE: The pump gears are part of the pump assembly and are
not serviced separately. A rough casting on the pump surface
crescent is not a flaw. Refer to TSB-91-19A Article 87-2-16Figure
25.Remove the pump gears.
PUMP GEARS (PART OF 7A103)
63
I(r:ilATSGI Service Information 4R44E 4R55E
10. Remove the converter hub-to-converter housing seal using
Seal Remover TOOL-117 5-AC or equivalent from the converter housing
as shown.0 'C:Q'
7. Inspect the pump gears for scoring and cracks.Replace pump
assembly if damaged.8.NOTE: Front fluid pump to converter housing
bushing is not serviced separately. If service is required, the
converter housing assembly must be replaced.Inspect the front fluid
pump to converter housing bushing and converter hub to converter
housing seal. Replace converter housing assembly ifnecessary. FRONT
FLUID
11. Clean and inspect the front and rear input shaft support
bushings. If bushings are worn, scored or damaged, replace the
front pump support and gear assembly. Inspect the pump gear
pocketsfor scoring and wear. Replace if necessary.
FRONT INPUT SHAFT SUPPORT BUSHING (PART OF 7A103)
orPUMP TO CONVERTER HOUSING BUSHING7B298
1 yZ ~
G'4o~,~;(CONVERTER HUB Q~///. TO CONVERTERHOUSING
SEAL7A2489.Using a small chisel, carefully remove the metal
displaced by prior staking. This wi!I allow for the removal of the
converter hub-to-converter housing seal from the converter
housing.
PUMP GEAR POCKETS(PART OF 7A103)
12. Inspect the mating surfaces of the pump body and case for
burrs.Inspect the drive and driven gear bearing surface for scores
and check the gear teeth for burrs.Inspect the front pump seal for
cuts or nicks. Inspect the pump bushing for scoring.Check the fluid
passages for obstruction.If any parts are found to be damaged or
worn, replace the pump as an assembly. Minor burrs and scores may
be removed with a crocus cloth.
64
I
Assembly1. CblAoUckTIoOfN~oPol~ce the converterc?nverter hyd or
~quivalent to housing on aside. rauhc passag protect theNOTE Ch es
on the backspring haseek and make
surehub-to-con~~:teorppheodusinogff of t~:act otnhveegrtaerrter
seal.
NOTE:Sta:k:e~b:e:t====-~~~~~~~~~ Stake a ne ween the old staseal
in plac~ c~nvertechub-I ke marks.T87L-77248~A1 thFront
Pumpo-Secoanl vSetratekrinhgoTuosoinlg
SEAL REPLTB?L-7724:-~~R
FRONT PUMP SEAL STAKING TOOLT87L-77248-BN
4. Carefully remo
. oolAdapter T95L-~~~~~~tAPump Seal Staking T
FRONTSEAL ST~~~~T TOOL95L- 77248-A
65
I(r;{llRTS61 Service Information 4R44E 4R55E
Coast Clutch
SPECIAL SERVICE TOOL(S) REQUIRED
Description Tool NumberClutch Spring Compressor T65L-77515-A
Coast Clutch Outer Seal Sizing Tool T95L-70010-0
Overdrive Brake and Coast Clutch Drum Assembly
Disassembly1.CAUTION: This is a select fit ring. See assembly
procedure if the ring or clutch plate pack is replaced.Remove the
retaining ring and coast clutch pressure plate from the overdrive
brake and coast clutch drum.
SELECT FIT RETAINING RING E860126-129-S
Part
1E860126-SRetaining Ring278066Coast Clutch Pressure
Plate378164Coast Clutch Internal Plate- Friction478442Coast Clutch
External Plate- Steel5E86125-SRetaining Ring670041Coast Clutch
Piston SpringRetainer,77C151Coast Clutch Piston Springs87A258Coast
Clutch Piston97A548Coast Clutch Piston OuterSeal Ring1070404Coast
Clutch Piston InnerSeal Ring117L669Overdrive Brake and CoastClutch
DrumItem Number Description
....._
COAST CLUTCHPRESSUREPLATE78066
OVERDRIVE BRAKE AND COAST CLUTCH DRUM7L669
2. CAUTION: If new clutch plates are being used, they should be
soaked in clean transmission fluid for at least 30 minutes before
assembly.Remove the coast clutch pack. Inspect for wear, damage or
overheating. Replace as necessary.
COAST CLUTCH PACK
66
I(~RTSli) Service Information 4R44E 4R55E
3. WARNING: USE CAUTION WHEN RELEASING TOOL PRESSURE ON THE REAR
CLUTCH PISTON SPRINGS.CAUTION: Do not fully compress the clutch
spring compressor or damage to the spring retainer may
occur.Compress the clutch piston springs with Clutch Spring
Compressor T65L-77515-A. Remove the retaining ring.
CLUTCH SPRING COMPRESSOR T65L-77515-A
4. Remove the clutch piston spring retainer and 20 clutch piston
springs.
COAST CLUTCH PISTON SPRING RETAINER-7A527
5. WARNING: AIR PRESSURE MUST NOT EXCEED 138 KPA (20 PSI). WEAR
SAFETY GLASSES WHEN USING COMPRESSED AIR, AND MAKE SURE DRUM IS
FACING DOWN AS SHOWN.Remove the coast clutch piston by using air
pressure. Apply air pressure to the one hole on the inside diameter
of the overdrive brake and coast clutch drum while blocking the
other hole with a finger.
6. Remove the inner and outer coast clutch piston seals. Clean
and replace as necessary.
COAST CLUTCH PISTON INNER SEAL RING-70404
COAST CLUTCHPISTON OUTER SEAL RING-7A548
COAST CLUTCH~~~~--t PISTON7A262
Assembly1.CAUTION: The lip seals must be positioned as shown.
Care must be taken to prevent roll over of the lip seal.Install new
inner and outer coast clutch piston seals on the coast clutch
piston
67
I(r;/IRTSG)
Service Information 4R44E 4R55E
COAST CLUTCH PISTON INNER SEAL RING70404
5.Check the fluid passages for obstructions. All fluid passages
must be clean and free of obstructions.6.Inspect the clutch plates
for wear, scoring and fit on the clutch hub serrations. Replace all
plates that are badly scored, worn or do not fit freely in the hub
serrations.7. Inspect the clutch pressure plate for scores onthe
clutch plate surface. Check the clutch release spring(s) for
distortion.8.Make sure the check ball is free and clear of debris
prior to installing piston. The check ball is located in the
overdrive brake and coast clutch drum.
COAST CLUTCH PISTON INNER SEAL RING70404
COAST CLUTCHPISTON--'"""---- OUTERSEAL RING70548
VIEWA
COAST1..,_..,.:.CLUTCH PISTON7A262
OVERDRIVEBRAKE AND COAST CLUTCH DRUM7L669
-2.CAUTION: Lubricate the inner and outer coast clutch piston
seals.Carefully press the coast clutch piston into coastClutch
Outer Seal Sizing Tool T95L-70010-0.
COAST CLUTCH OUTER SEAL SIZING TOOL195L-70010-D
/
COAS 1 l0LUTCllPISTCJrl 7A?58
3.Inspect the drum band surface, bushing and thrust surfaces for
scores. Minor scores may be removed with a crocus cloth. Badly
scored parts must be replaced.4.Inspect the clutch piston bore and
the piston and the piston inner and outer bearing surfaces for
scores.
9. Carefully remove the coast clutch piston fromCoast Clutch
Outer Seal Sizing ToolT95L-70010-0.
COAST CLUTCH OUTER SEAL SIZING TOOL T95L-70010-D
COAST CLUTCH PISTON-7A258
68
II (rJIATSG) Service Information 4R44E 4R55E
10. CAUTION: Care must be taken to prevent damage to the seals
during Installation.Carefully install the coast clutch piston into
the overdrive brake and coast clutch drum.11. Install the 20 coast
clutch piston springs and coast clutch piston spring retainer onto
the coast clutch piston.12. CAUTION: Do not fully compress the
clutch spring compressoror damage to the coast clutch piston spring
retainer may occur.Compress the coast clutch piston springs with
Clutch Spring Compressor T65L-77515-A. Install the retaining ring.
Release the load on the springs applied by the tool. Remove the
tool.
CLUTCH SPRING COMPRESSOR T65L-77515A
D5543C13. CAUTION: If new clutch plates are being used, they
should be soaked in clean transmissionfluid for at least 30 minutes
before assembly.Install the two steel clutch plates and two
friction clutch plates in alternating order, starting with the
steel plates first.
FRICTION CLUTCH PLATES78164
14. CAUTION: The retaining ring Is select flt.Install the coast
clutch pressure plate. Install the retaining ring on top of the
clutch pressure plate.SELECT FIT RETAINING RING E860126 129S
COAST CLUTCH PRESSURE PLATE78066
OVERDRIVE8RAKEAND_coASTCLUTCHDRUM7L669
15. WARNING:AIR PRESSUREMUST NOT EXCEED 138 KPA (20 PSI). WEAR
SAFETY GLASSES WHENUSINGCOMPRESSEDAIR. MAKE SUREDRUMIS FACING DOWN
AS SHOWN.NOTE: The coast clutch piston must apply withair pressure
and release when the air is removed.Air check the assembly. Apply
air to the one hole on the inside diameter of the overdrive brake
and coast clutch drum while blocking the other hole with a finger.
\.......-
If the reading is not within specification, remove the retaining
ring and check the thickness. Replace it with a ring that will
correct free play.Verify with a feeler gaug:e~.~~~~~
16. Check the free pl~e c utch pack. Push down on the clutch
pack. Use a feeler gauge to check the gap between the retaining
ring and the pressure plate. Specification: 1.3 to 2.0mm (.051 to
.079 inch).
69
I(r:JiRTSGI Service Information 4R44E 4R55ECOAST CLUTCH
ThlckneH Diameter
Part NumbermmInchesmmInches
EB60126-S1.37.0539130.15.122
EB60127-S1.73.0681130.15.122
EB60128-S2.08.0819130.15.122
EB60129-S2.44.0961130.15.122
Intermediate Brake and Direct Clutch DrumAssembly
SPECIAL SERVICE TOOL(S) REQUIRED
RETAINING RING E860126-129-S
DescriptionTool Number
Clutch Spring CompressorDirect Clutch Outer Seal Sizing
ToolT65L-77515-A T95L-70010-E
Intermediate Brakeand Direct Clutch DrumAssembly
tem1NumberEB60126-SDescriptionRetaining RingRemove the direct
clutch pack. Inspect for wdamage or overheating. Replace the steel
orfriction plates as necessary.278066Direct Clw.tch Pressure
Plate378164Direct Clutch Internal Plate- Friction478442Direct
Clutch External Plate- Steel5EB60125-SRetaining Ring67D041Direct
Clutch Piston SpringRetainer77C151Direct Clutch Piston Springs(20
Req'd)87A258Direct Clutch Piston97A54BDirect Clutch Piston
OuterSeal Ring107D404Direct Clutch Piston InnerSeal
Ring117D044Intermediate Brake andDirect Clutch DrumPartI
2. CAUTION:If new clutch plates are being used, they should be
soaked In clean transmission fluid for at least 30 minutes before
assembly.ear,
Disassembly1.CAUTION:The retaining ring Is a select flt ring.
See aseembly procedure If the ring or clutch pack Is
replaced.Remove the retaining ring and direct clutch pressure
plate.
70
I(r3ATS61 Service Information 4R44E 4R55E
3.WARNING: AFTER REMOVING THE RETAINING RING, USE CARE WHEN
RELEASING THE PRESSURE ON THE SPRINGS.
CAUTION: Do not fully compress the clutch spring compressor or
damage to the spring retainer may occur.
6.Remove the inner and outer direct clutch piston seals. Clean
and replace as necessary.
DIRECTCompress the direct clutch piston springs with Clutch
Spring Compressor T65L-77515-A. Remove the retaining ring. Remove
the tool.
~-..-....-, ...
CLUTCH PISTON7A2.62
Assembly
1.CAUTION: The lip seals must be positioned as shown. Care must
be taken to prevent rollover of the lip seal.
Install new inner and outer direct clutch piston seals on the
direct clutch piston.
DIRECT CLUTCH PISTON OUTER SEAL"\. 7A5484.Rornovs the direct
clutch plston spring retainer "'- and W direct dutch piston
springs.
"'---~.....!..'~~:......;;-:::......~.....!.~~~~~~~~~---,DIRECT
CLUTCH PISTON OUTER SEAL-70548
REVERSE AND DIRECT CLUTCH PISTON,~.-r,.-INNER SEAL7D404
VIEWA
2.5. WARNING: DO NOT EXCEED 138 KPA (20PSI). WEAR SAFETY GLASSES
WHEN USING COMPRESSED AIR. MAKE SURE DRUM IS FACING DOWN AS
SHOWN.Remove the direct clutch piston using compressed air. Apply
air pressure to the one hole on the inside diameter of the
intermediate brake and direct clutch drum while blocking the other
hole with a finger. DIRECTCLUTCH PISTON SPRING RETAINER7A527
DIRECT CLUTCH~~L--- PISTONSPRINGS7A480
71
DIRECT CLUTCf- PISTON INNER SEAL-7D404CAUTION: Lubricate the
Inner and outer direct clutch piston seals.Carefully press the
direct clutch piston into directClutch Outer Seal Sizing Tool
T95L-70010-E.
CLUTCH OUTER SEAL SIZING TOOL --T95L- 70010-E?--
)----
I(r3ATS6) Service Information 4R44E 4R55E
3.Inspect the drum band surface, bushing and thrust surfaces for
scores. Minor scores may be removed with a crocus cloth. Badly
scored parts must be replaced.4.Inspect the clutch piston bore and
the piston and the piston inner and outer bearing surfaces for
scores.5.Check the fluid passages for obstructions. All fluid
passages must be clean and free of obstructions.6.Inspect the
clutch plates for wear. scoring and fit on the clutch hub
serrations. Replace all plates that ere badly scored, worn or do
not fit freely in the hub serrations.7. Inspect the direct clutch
pressure plate forscores on the clutch plate bearing surface. Check
the clutch release spring for distortion.8.Make sure the check ball
is free and clear of debris prior to installing piston. The check
ball is located in the intermediate brake and direct clutch
drum.INTERMEDIATE BRAKE AND DIRECT CLUTCH DRUM ASSEMBLY-70044
9. Carefully remove the direct clutch piston from direct Clutch
Outer Seal Sizing Tool T95L70010E.CLUTCH OUTER SEAL SIZING TOOL
T95L- 70010-E
DIRECT CLUTCH PISTON-7A258
10. CAUTION: Care must be taken to prevent damage to the seals
during Installation.Carefully install the clutch piston into the
intermediate brake and direct clutch drum.
\
FRICTION CLUTCH PLATES78164
STEELCLUTCH PLATES-78442
11. CAUTION: The number of plates Is model dependent. See
specifications at the end of this section. If new plates are being
used they should be soaked In clean transmls~lon fluid for at least
30 minutes before assembly.Install the steel clutch plates and
friction clutch plates in alternating order, starting with a steel
plate and finishing with a friction plate.
EngineSteelFriction
2.3L44
3.0L44
4.0L55
72
I(~ATSGI Service Information 4R44E 4R55E
12. CAUTION: The retaining ring Is a select flt.Install the
direct clutch pressure plate on the clutch stack.
RETAINING RING E860126-129-S
DIRECT CLUTCH PRESSURE PLATE'78066
13. WARNING: AIR PRESSURE MUST NOT EXCEED 138 KPA (20 PSI). WEAR
SAFETY GLASSES WHEN USING COMPRESSED AIR. MAKE SURE THE DRUM IS
FACING DOWN AS SHOWN.NOTE: The direct clutch piston must apply
withair pressure and release when the air is removed.Air check the
assembly. Apply air to the hole on the inside diameter of the
intermediate brake and direct clutch drum while blocking the other
hole with a finger.
14. Install the retaining ring on top of the direct clutch
pressure plate. Push down on the clutch pack. Use a feeler gauge to
check the gap between the retaining ring and the clutch pressure
plate. Specification: 1.3 to 2.0mm (.051 to .070 inch).If the
reeding Is not within specification remove the retaining ring end
check thickness.0Replece w!th a ring that will correct free play,
end verify with a feeler gauge.
DIRECT CLUTCH
Part NumbermmlnchHmmlnchHE880128S1.37.0539130.15.122----
1.73.0681130.15.122E860128S2.08.0819130.15.122E860129S2.44.0961130.15.122ThlckneH
Diameter
E880127S
--- ii
73(r:.AT561 Service Information 4R44E 4R55E
Forward Clutch
SPECIAL SERVICE TOOL(S) REQUIRED' Description Tool NumberClutch
Spring Compressor T65L-77515-A Lip Seal Protector T74P-77548-B
Disassembly1.CAUTION:The retaining ring Is a select fit ring.
See assembly procedure If the retaining ring or clutch pack Is
replaced.CAUTION:If new plates are being used, they should be
soaked In clean transmissionfluid for at least 30 minutes before
assembly.Remove the retaining ring and forward clutch pressure
plate.
FORWARD CLUTCH PRESSURE PLATE78066
3.0L 5 5
74I
ItemPartNumberDescription1E860115-SRetaining Ring2.NOTE: The
number of clutch plates is model278066Forward Clutch
Pressuredependent.Plate378164Forward Clutch InternalPlate -
FrictionEngine Steel Friction478442Forward Clutch External2.3L 5
5Plate - Steel57E457Forward Clutch CushionSpring4.0L 6
66E860109-SRetaining Ring770047Forward Clutch Piston Remove the
forward clutch pack. Inspect for wear87C151Forward Clutch
PistonSprings ( 15 Req 'd)97A262Forward Clutch Piston107A548Forward
Clutch Piston OuterSeal Ring117A548Forward Clutch Piston InnerSeal
Ring1270424Forward Clutch CylinderAssembly1370019Forward Clutch
CylinderSeal Rings147C096No. 5 Forward ClutchCylinder Thrust
WasherSpring Retainer
, damage or overheating. Replace as necessary.I (~RTSGJ Service
Information 4R44E 4R55E
3.CAUTION: Do not fully compress the clutch spring compressor or
damage to the spring retainer may occur.Compress the forward clutch
piston springs with Clutch Spring Compressor T65L-77515-A. Remove
the retaining ring.
4.WARNING: CAREFULLY RELEASE THE TOOL PRESSURE ON THE FORWARD
CLUTCH PISTON SPRINGS AND REMOVE THE TOOL.Remove the clutch spring
compressor from the forward clutch cylinder.5. CAUTION: The forward
clutch cushion springIs model dependent.Remove the forward clutch
piston spring retainer and 15 forward clutch piston springs. Remove
the forward clutch cushion spring. Replace as necessary.
6.WARNING: AIR PRESSURE MUST NOT EXCEED 138 KPA (20 PSI). WEAR
SAFETY GLASSES WHEN USING COMPRESSED AIR. MAKE SURE THE CYLINDER IS
FACING DOWN AS SHOWN.NOTE: This is the middle-sized port.Use the
center support to remove the forward clutch piston. Install the
center support on the forward clutch cylinder. Apply air pressure
to the far left port in the center support as shown.
CENTER SUPPORT7A130
\
MIDOLE- SIZED PORT
7. Remove the inner and outer forward clutch piston seals. Clean
and replace as necessary.
FORWARD CLUTCH PISTONFORWARD CLUTCH PISTON OUTERFORWARD
SPRING RETAINER7A527SEAL-7A548CLUTCH PISTON7A262
FORWARD CLUTCH
PISTON SPRINGS
7A480
FORWARD CLUTCH CUSHION SPRING78070
FORWARD CLUTCH CUSHION SPRING78070
75
I(~ATSGI Service Information 4R44E 4R55E
8. Remove the forward clutch cylinder seal rings.
FORWARD CLUTCH CYLINDER SEAL RINGS7D019
FORWARD CLUTCH PISTON OUTER SEAL RING7A548
FORWARD CLUTCH PISTON7A262
9.Inspect the forward clutch cylinder thrust surfaces, piston
bore and clutch plate serrationfor scores or burrs. Minor scores or
burrs may be removed with a crocus cloth. Replace theforward clutch
cylinder if it is badly scored or damaged.10. Check the fluid
passages in the forward clutch cylinder for obstructions. Clean out
all passages. Inspect the forward clutch piston for scores and
replace if necessary. Inspect the piston checkball for freedom of
movement and proper seating.11. Check the clutch release springs
for distortion and cracks. Replace the springs if they are
distorted or cracked.12. Inspect the friction clutch plates, steel
clutch plates and clutch pressure plate for worn orscored bearing
surface. Replace all parts that are deeply scored.13. Check clutch
plates for flatness and fit on the clutch hub serrations. Discard
any plate that does not slide freely on the serrations or that is
not flat.14. Check clutch hub thrust surfaces for scores and clutch
hub splines for wear.15. NOTE: The check ball is located in the
piston.Make sure the check ball is free and clear of debris prior
to installing the forward clutch piston.
Assembly
1. CAUTION:If there Is evidence of clutch plate burning, replace
the forward clutch cushion spring.CAUTION:The forward clutch
cushion springIs model dependent.
Install new inner and outer forward clutch piston seals on the
forward clutch piston. Install the forward clutch cushion
spring.
FORWARD CLUTCH PISTON OUTERSEAL-7A548
FORWARDCLUTCHPISTON7A262
76(~RTs&I Service Information 4R44E 4R55E
2. To prevent damage to the forward clutch piston outer seal,
install Lip Seal ProtectorT7 4P-77548-A. To prevent damage to the
forward clutch piston inner seal install Lip Seal Protector T7
4P-77548-A into forward clutch cylinder.
r-
3.CAUTION:Care must be taken to prevent damage to the
seals.NOTE: Apply petroleum jelly to the inner and outer
seals.Carefully install the forward clutch piston into the forward
clutch cylinder.4. Carefully remove Lip Seal ProtectorT74P-77548-A
and Lip Seal ProtectorT74P-7754-8 from the forward clutch
cylinder.5.Install the 15 forward clutch piston springs and forward
clutch piston spring retainer.
FORWARD CLUTCH PISTON SPRING RETAINER7A527
6. CAUTION:Do not fully compress the clutch spring compressor or
damage to the forward clutch piston spring retainer may
occur.Compress the clutch piston springs with Clutch Spring
Compressor T65L-77515-A and install the retaining ring. Release the
load on the forward clutch piston springs and remove the tool.
7.CAUTION:If new plates are being used, they should be soaked In
clean transmission fluld for at least 30 minutes before
assembly.CAUTION:The number of clutch plates Is model
dependent.Install the steel clutch plates and friction clutch
plates in alternating order, starting with a steel plate and
finishing with a friction plate.
FRICTION CLUTCH PLATES78164
STEEL CLUTCH PLA TES-78442
Engine StHI Friction2.3L 5 53.0L 5 54.0L 6 6
77
I(~ATSG) Service Information 4R44E 4R55E
8. CAUTION: The retaining ring is a select flt.Install the
forward clutch pressure plate on the clutch pack. Install the
retaining ring.
FORWARD CLUTCH PRESSURE PLATE78066
9. CAUTION: Front clutch cylinder seal rings must be Interlocked
as shown. Interlock the forward clutch cylinder seal rings.
WRONG
11. WARNING: DO NOT EXCEED 138KPA(20PSI). WEAR SAFETY GLASSES
WHEN USING COMPRESSED AIR. MAKE SURE THE DRUM IS FACING DOWN AS
SHOWN.NOTE: The forward clutch piston must apply With air pressure
and release when the air is removed.Install the center support on
the forward clutch cylinder. Apply air pressure to the far left
port in the center support as shown.
CENTER SUPPORT7A130
INTERLOCKED
FORWARD CLUTCH CYLINDER SEAL RING-70019
12. Push down on the clutch pack. Use a feeler gauge to check
the gap between the retaining ring and the clutch pressure plate.
Specification: 1.4 to2.1mm (.055 to .083 inch). If the reading is
not within specifications, remove the retaining ring10. NOTE: Make
sure that the torward clutch cylinder seal ring gaps are placed 180
degrees apart. Install the forward clutch cylinder seal rings on
the forward clutch cylinder.
FORWARD CLUTCH CYLINDER SEAL RINGS70019
and check the thickness. Replace the retaining ring with one
that will provide correct free play. Verify free play with a feeler
gauge.
78
II (r:.RTSli) Service Information 4R44E 4R55E
FRONT CLUTCH CYLINDER
ThlckneBB
DiameterPart NumbermmInchesmmInches
E860115-S1.37.0539125.14.925
E860116-S1.73.0681125.14.925
E860117-S2.08.0819125.14.925
E860118-S2.44.0961125.14.925
79IForward Geartrain AssemblyAssembly
PartItem Number Description1- Intermediate Brake and Direct
Clutch Drum Assembly2 7C096 No. 5 Forward ClutchCylinder Thrust
Washer3 - Forward Clutch CylinderAssembly4 7D234 No. 6A Forward
Ring GearHub Thrust Bearing5 70090 No. 6B Forward ClutchThrust
Washer6 70392 Forward Ring Gear7 7F374 No. 7 Forward Planet
ThrustBearing8 7A398 Forward Planet Assembly9 70064 Input Shell10
70063 Forward Sun Gear
1.Install the No. 5 forward clutch cylinder thrust washer on the
intermediate brake and direct clutch drum. Align the tabs as shown.
Use petroleum jelly to hold the washer in place.
TABS
N0.5FORWARD CLUTCH CYLINDER THRUST WASHER7C096
INTERMEDIATE BRAKE AND DIRECT CLUTCH DRUM ASSEMBLY7D044
2.Install the forward clutch cylinder assembly into the
intermediate brake and direct clutch drum as shown.
FORWARD CLUTCH CYLINDER ASSEMBLY7A360
INTERMEDIATE BRAKE AND DIRECT CLUTCH DRUM ASSEMBLY7D044
3.Install the No. 6A forward ring gear hub thrust bearing into
the forward clutch cylinder as shown.
NO. 6A FORWARD RING GEAR HUB THRUST WASHER70234/
4.NOTE: Use petroleum jelly to hold the washer in place.Install
the No. 68 forward clutch thrust washer into the forward ring gear
hub.(r:.RtsGI Service Information 4R44E 4R55E
7.NOTE: The forward planet assembly is model dependent.Install
the forward planet assembly into the forward ring gear as
shown.
FORWARD PLANET ASSEMBLY7A398
NO. 68FORWARDCLUTCHTHRUST WASHER5. NOTE: Make sure the No. 6A
bearing and No. 68 thrust washer assembly are inside the forward
ring gear.Install the forward ring gear and forward ring gear hub
into the forward clutch cylinder as shown.
N0.68FORWARDCLUTCH THRUST WASHER7D090
FORWARD CLUTCH CYLINDER ASSEMBLY7A360
6. Install the No. 7 forward planet thrust bearing into the
forward ring gear as shown.
NO. 7FORWARD PLANET THRUST BEARING7F374
FORWARD RING GEAR70392
8. NOTE: 4.0L does not require a bushing inside the forward sun
gear or washer on back of inputshell.Inspect the drum gear, bushing
and washer. for scoring, wear or damage. Replace as required.9.
NOTE: Make sure the forward sun gear aligns with the forward planet
assembly. Make sure the input shell aligns with the intermediate
brake anddirect clutch drum assembly as shown. Install the input
shell with forward sun gearassembly as shown.
INPUT SHELL70064
INTERMEDIATE BRAKE AND DIRECT CLUTCH DRUM ASSEMBLY70044
80
IIr:.t:ITSG I Service Information 4R44E 4R55E
Overdrive Planet and One-Way ClutchAssembly
Overdrive Planet and One-Way Clutch Assembly
ItemPartNumberDescriptionItemPartNumberDescription
1E860119-SRetaining Ring678446Planetary Gear Overdrive
27A658Overdrive Center ShaftCarrier7 70235 No. 12 Sun Gear
ThrustBearing Race8 70063 Overdrive Sun Gear9 7660 Coast Clutch
Adapter
3-Overdrive One-Way Clutch(Part of 7 A658)
47653Overdrive Ring Gear
57L495No. 2 Overdrive PlanetThrust Bearing
(Continued)
81
I(r'JIATSG) Service Information4R44E 4R55E
Disassembly
1.Remove the overdrive center shaft retaining ring from the
overdrive ring gear.
OVERDRIVE ONE-WAY CLUTCH7A089
4.Temporarily insert the planetary gear overdrive carrier
assembly into the one-way clutch rollers for verification of the
one-way clutch. The planetmust rotate counterclockwise as shown.
Removethe planetary gear overdrive carrier assembly.
2.Remove the overdrive center shaft from the overdrive ring
gear.
3. CAUTION: Do not remove the overdriveone-way clutch. Damage to
the clutch mayoccur If It Is removed.NOTE: The overdrive one-way
clutch is serviced with the overdrive center shaft.Clean and
inspect the overdrive one-way clutch and overdrive center shaft
assembly. Check for cracks in the roller cage and wear on the
roller clutch. Inspect the press fit of the one-way roller clutch
to the overdrive center shaft.Inspect the rollers and springs for
excessive wear or damage.
Inspect the spring and roller cage for bent or damaged spring
retainers.
PLANETARY GEAR OVERDRIVECARRIER ASSEMBLY78~46
OVERDRIVE CENTER SHAFT ASSEMBLY7A658
Assembly
1.Install the overdrive center shaft and overdrive one-way
clutch into the overdrive ring gear.
82
II (r.aRTSG) Service Information4R44E 4R55E
2. Install the center shaft retaining ring.
CENTER SHAFT RETAINING RING E860119-S
OVERDRIVE CENTER SHAFT7A658
OVERDRIVE1+--- RING GEAR7A153
3. CAUTION: Planets must be replaced. Do not restake.
NOTE: Individual parts of the planet carriers are not
serviceable.Check the pins and shafts in the planet assemblies for
loose fit and I or complete disengagement. Use a new planet
assembly if either condition exists. Before installing a planet
assembly, the shaft retaining pins should be checked for adequate
staking.Inspect the pinion gears for damaged or excessively worn
teeth.Check for free rotation of the pinion gears. Inspect the
overdrive one-way clutch inner racetor scoring.Check pinion bearing
and gears.
Inspect the inner and outer races for scored or damaged surface
areas where the rollers contact the races.
Inspect the needle bearing on the nose of the planetary gear
overdrive carrier.
NEEDLE BEARING (PART OF 78446)
PLANETARY GEAR OVERDRIVE CARRIER ASSEMBLY-78446
Inspect the No. 12 needle bearing inside the planetary gear
overdrive carrier.
NO. 12 NEEDLE BEARING (PART OF 78446)
4.NOTE: Use petroleum jelly to hold the No. 2 overdrive planet
thrust bearing in place.Install the No. 2 overdrive planet thrust
bearing between the overdrive center shaft face and the planetary
gear overdrive carrier assembly.
5.Install the planet gear overdrive carrier into the overdrive
center shaft and overdrive ring gear.
PLANETARY GEAR OVERDRIVE CARRIER ASSEMBLY-78446
OVERDRIVE RING GEAR AND OVERDRIVE CENTER SHAFT
83
I(rJIRTSGI Service Information 4R44E 4R55E
6. CAUTION:Use care not to bend or damage the exciter
wheel.CAUTION:Before installing the overdrive sun gear into the
planetary gear overdrivecarrier, make sure the No. 12 sun gear
thrustbearing race is aligned with the needlebearing inside the
planetary gear overdrive carrier. The overdrive sun gear wlll not
seat properly if the No. 12 sun gear thrust bearing race Is not
aligned In the center of theoverdrive sun gear.
Install the overdrive sun gear into the planetary gear overdrive
carrier.
OVERDRIVE{ SUN GEAR7D063
7.Install the coast clutch adapter on the overdrive sun
gear.
Center SupportDisassembly
INTERMEDIATE BRAKE DRUM SEAL RINGS70429
CENTER SUPPORT7A130
1.Remove the two intermediate brake drum seal rings from the
center support.
INTERMEDIATE BRAKE DRUM SEAL RINGS7D429(2 R~Q'D)
2.Inspect the support thrust surface for wear, scoring or
damage. Inspect the forward clutch sealing surface for scoring or
damage.Inspect the forward clutch cylinder and intermediate brake
drum seal ring grooves in the center support for nicks, burrs or
damaged edges.Check the seal rings for damage.
IiIi \DIRECT CLUTCHEXTERNAL SEAL---"'" GROOVE- (PART OF
7A130)
84
I(r;jiAT56) Service Information 4R44E 4R55E
Reverse Brake Drum
SPECIAL SERVICE TOOL(S) REQUIRED
DescriptionToolNumberOverrunning Clutch Replacing Guide
T74P-77193A
Disassembly
Reverse Brake Drum
2.3L/3.0L 4.0L
PartItem Number Description1 E860120-S Retaining Ring2 70191 Low
One-Way Clutch Spring
2. Lift out the cage with the springs and bearing rollers as a
unit.
Assembly1. Install the two intermediate brake drum seal rings on
the center support and apply a liberal amount of petroleum jelly to
the hub and seals.
INTERMEDIATE BRAKE------ DRUM SEAL RINGS70429(2 REQ'D)
2.CAUTION:Do not roll or cut the seals. Allow to stand for
several minutes before attempting to remove hub and Install Into
the Intermediate brake and direct clutch drum during final
assembly.NOTE: This step is for sizing the intermediate brake drum
seal rings.
Retainer3 7190 Low One-Wey Clutch Rollers(10Req'd)4 7C498
Reverse Brake Drum -2.3L, 3.0L5 7E193 Reverse Brake DrumAssembly
(Rear One-WayClutch) - 4.0L1.NOTE: For 4.0L applications, there is
no reta