9.75 Inch Axle

Drive Pinion and Ring Gear Replacement (9.75 Inch Axle)

Tools Required
^ J22536 Pinion Driver

Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the differential assembly.
3. Remove the drive pinion yoke and the pinion oil seal.





4. Remove the thrust washer.





5. Install the J22536 as shown.
Ensure that the J22536 is firmly seated on the pinion.
6. Drive the pinion out using the J22536 and a hammer.
Strike the J22536 slowly. Do not let the pinion fall out of the rear axle housing.
7. Remove the pinion preload shims from the drive pinion and set aside.
8. Remove the inner pinion bearing and the pinion position shim.

Important: The ring gear bolts have right-hand threads.





9. Remove the ring gear bolts. Discard the bolts.

Notice: Refer to Ring Gear Removal Notice in Service Precautions.





10. Remove the ring gear from the differential case. 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.

Important: The mating surface of the ring gear and the differential case must be clean and free of burrs before installing the ring gear,





2. Install the ring gear to the differential case.
Align the holes in the differential case to the bolts holes in the ring gear.

Important: The ring gear bolts have right-hand threads.





3. Install the new ring gear bolts.
Hand start each bolt to ensure that the ring gear is properly installed to the differential case.

Notice: Refer to Fastener Notice in Service Precautions.

4. Tighten the new ring gear bolts. Tighten the ring gear bolts alternately and in stages, gradually pulling the ring gear onto the differential case.
Tighten the new ring gear bolts to 178 Nm (131 lb ft).
5. Install the differential assembly.
6. Fill the axle with lubricant. Use the proper fluid.
7. Lower the vehicle.