The differential drives the vehicle down the road. A tremendous  amount of force is applied to the gears and bearings inside the case, even though the the gears and bearings are lubricated with a heavy duty oil wear does happen after hundred of thousands of miles, or can be damaged from extreme force being applied the gears causing breakage or misalignment. We are equipped to service the differential or inspect for wear and any noises the differential may be making and repair it.

open differential non locking type, assembled

Ring and pinion new unassemblied

Drop out or third member type differental

Hours of Operation:


Monday - Friday: 9:00 AM - 5:30 PM


Saturday's by Appointment


​Night Drop off available


(541) 754-5310

Greg's Auto Service

440 SW Wake Robin Ave.

Corvallis, Oregon 97333

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From downtown Corvallis:

 1. Drive SOUTH on SW 4th St (US-20)

This a ONE-WAY street heading SOUTH


 2. Take left underpass onto SW 3rd St (OR-99W S) toward Junction City/Eugene (go 1.4 mi) You will travel through two traffic lights. The second is in the Lincoln School speed zone. 20 mph on school days.


 3. Turn right onto SW Wake Robin Ave (go 0.2 mi) This is the first right turn after Park Ave. The shop is on the left before the tracks.