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T-SB-0026-15 May 20, 2015
Front Differential Groaning/Grinding Cyclical Noise
Some 2004 – 2015 model year Tacoma, FJ Cruiser, and 4Runner vehicles may exhibit a cyclicalgrinding or groaning noise coming from the front differential in 2WD that goes away when operatedin 4WD. This noise can be addressed by replacing the needle bearing on the left side of the frontdifferential. Refer to the Repair Procedure for Needle Bearing Roller replacement instructions.
Warranty Information
OP CODE DESCRIPTION TIME OFP T1 T2
TC1501 R & R Needle Bearing 2.0 90364-35010 91 19
APPLICABLE WARRANTY• This repair is covered under the Toyota Powertrain Warranty. This warranty is in effect for 60
months or 60,000 miles, whichever occurs first, from the vehicle’s in-service date.
• Warranty application is limited to occurrence of the specified condition described inthis bulletin.
5. Install the Steering Worm Bearing Puller as shown below in the left side of the differentialcarrier assembly.Steering Worm Bearing PullerSST: 09612-30012Figure 1.
HINTDrive shaft may rotate during bearing removal. In this event, grab drive shaft andprevent rotation.
6. Remove LH differential Needle Bearing Roller using the Steering Worm Bearing Puller.
Front Differential Groaning/Grinding Cyclical Noise
Repair Procedure (Continued)
7. Install NEW Needle Bearing Roller with SSTs. Use rubber ended mallet to press new partinto differential.Handle SetSST: 09950-70010-01Replacer Set 1SST: 09950-60010-01 (item no. C3 – 39 mm)
NOTE• Install Needle Bearing Roller with engraved print outward as shown.
• Installation depth between surface 3A & 3B should be 1.4 – 1.7mm
Figure 2.
132
3A
3B
1 Replacer and Handle used to press bearing intodifferential case.
2 Partial installation of bearing - Engraved printfacing outward.
3 Complete installation of bearing - Engraved printfacing outward.