Drive Pinion Bearings Replacement 8.6 Inch, 9.5 Inch Axle

Tools Required

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
3. Remove the brake drums. Refer to Brake Drum Replacement in Drum Brakes.
4. Remove the axle shafts. Refer to Rear Axle Shaft Replacement .
5. Remove the differential. Refer to Differential Replacement .
6. Remove the drive pinion from the axle. Refer to Drive Pinion and Ring Gear Replacement .



7. Press the bearing off of the pinion using theJ 22912-B .
8. Remove the shim.
9. Remove the drive pinion bearing cups from the axle housing using a hammer and a brass drift in the slots provided. Move the drift back and forth between one side of the cup and the other in order to work the cups out of the housing evenly.

1. Install the outer pinion bearing cup using the J 8611-01 (8.6 inch axle) (2), or the J 7818 (9.5 inch axle) (2) and the J 8092  (1).



2. Install the inner pinion bearing cup using the J 8608 (8.6 inch axle) (2), or the J 22306 (9.5 inch axle) (2) and the J 8092  (1).
3. Determine the selective shim thickness for the pinion. Refer to Pinion Depth Adjustment .



4. Install the selective shim between the inner pinion bearing and the shoulder on the gear.
5. Install the inner pinion bearing using the J 24433 (8.6 inch axle) or the J 36614 (9.5 inch axle).

Press the bearing on until the cone seats on the pinion shim.

6. Install a new collapsible spacer.
7. Install the pinion into the axle housing.
8. Install the outer pinion bearing onto the pinion.
9. Install a new pinion oil seal and the pinion yoke. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement .
10. Install the differential. Refer to Differential Replacement .
11. Install the brake drums. Refer to Brake Drum Replacement in Drum Brakes.
12. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
13. Fill the axle with lubricant. Use the proper fluid. Refer to Approximate Fluid Capacities and Fluid and Lubricant Recommendations in Maintenance and Lubrication.
14. Lower the vehicle.

Drive Pinion Bearings Replacement 10.5 Inch Axle

Tools Required

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the differential. Refer to Differential Replacement .
3. Remove the pinion gear bearing retainer. Refer to Drive Pinion Housing and/or Seal Replacement .
4. Remove the pinion yoke and the oil seal. Refer to Drive Pinion Housing and/or Seal Replacement .
5. Remove the outer pinion bearing.



6. Remove the pinion using a hydraulic press.



7. Remove the collapsible spacer.



8. Remove the inner pinion bearing from the pinion using the J 22912-B and a hydraulic press.



9. Remove the outer pinion bearing cup using a hammer and a brass drift in the slots provided.

Move the drift back and forth between one side of the cup and the other in order to work the cups out of the retainer evenly.




10. Remove the inner pinion bearing cup using a hammer and a brass drift in the slots provided.

Move the drift back and forth between one side of the cup and the other in order to work the cups out of the retainer evenly.




11. Remove the pinion gear pilot bearing using a brass drift and a hammer.

1. Install the pinion gear pilot bearing using the J 22761 .



2. Install the inner pinion bearing cup into the pinion gear bearing retainer using the J 37624  (2) and the J 8092 (1).



3. Install the outer pinion bearing cup into the pinion gear bearing retainer using the J 8608 (2) and the J 8092 (1).



4. Install the inner pinion bearing using the J 24433 .

Press the bearing on until the cone seats on the pinion.

5. Install a new collapsible spacer.
6. Lubricate the pinion bearings with axle lubricant. Use the proper fluid. Refer to Fluid and Lubricant Recommendations in Maintenance and Lubrication.



7. Install the pinion into the pinion gear bearing retainer.
8. Install the outer pinion bearing onto the pinion.
9. Install the pinion oil seal and the pinion yoke. Refer to Drive Pinion Housing and/or Seal Replacement .
10. Install the pinion gear bearing retainer. Refer to Drive Pinion Housing and/or Seal Replacement .
11. Install the differential. Refer to Differential Replacement .
12. Lower the vehicle.