Hours of Operation: Monday – Friday: 8 AM – 5 PM | Saturday: call for hours | Sunday: closed LEON’S TRANSMISSIONS 8 LOCATIONS Newhall/Canyon Country 23222 Sierra Highway Newhall, CA 91321 (661) 252-7200 Costa Mesa 1728 Placentia Ave. Costa Mesa, CA 92627 (949) 631-1170 Garden Grove 12612 Garden Grove Blvd. Garden Grove, CA 92843 (714) 534-3300 Glendale 6911 San Fernando Rd. Glendale, CA 91201 (818) 844-2200 La Mirada 14253 E. Imperial Hwy. La Mirada, CA 90638 (562) 944-0911 Oxnard 3280 Vineyard Ave. Oxnard, CA 93036 (805) 485-9064 Reseda 7528 Reseda Blvd. Reseda, CA 91335 (818) 345-8101 Thousand Oaks 3043 Thousand Oaks Blvd. Thousand Oaks, CA 91362 (805) 495-6497