C 3500 HD Truck 2WD V8-8.1L VIN G (2002)
Pinion Gear: Service and Repair
Drive Pinion and Ring Gear Replacement
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the axle shafts.
3. Remove the differential case assembly.
4. Remove the drive pinion yoke and the oil seal.
5. Remove the thrust washer and the outer pinion bearing.
6. Remove the drive pinion from the axle using a soft-faced hammer.
Important: The location of the pinion preload shims may vary. The pinion preload shims may also be located on the backface of the outer pinion
bearing or in the oil sump.
7. Remove the pinion preload shims from the drive pinion and set aside.
8. Remove the inner pinion bearing and the pinion position shim.
9. Remove the ring gear bolts.
Discard the ring gear bolts.
Notice: Do not pry the ring gear from the differential case. Prying the ring gear from the differential case may cause damage to the ring gear and/or
the differential case.
10. Remove the ring gear from the differential case assembly. Drive the gear off with a brass drift if necessary.
Installation Procedure
1. Determine the pinion position shim thickness and the pinion preload shim thickness for the drive pinion gear.
2. Install the differential case assembly.
3. Install the axle shafts.
4. Fill the axle with lubricant. Use the proper fluid.
5. Lower the vehicle.
