Drive Pinion Disassemble

Drive Pinion Disassemble
^ Tools Required
- J 22536 Pinion Driver
- J 22912-01 Rear Pinion Bearing Cone Remover





1. Remove the differential carrier.
2. Measure the differential drive pinion gear inner and outer bearing preload.
3. If a preload measurement cannot be obtained, inspect for looseness of the drive pinion gear and/or damaged or defective drive pinion gear bearings.
Damaged or defective drive pinion gear bearings must be replaced.
4. If the rear axle was operated for an extended period with loose inner and outer drive pinion gear bearings, the following components will require replacement:
^ The ring gear
^ The drive pinion gear
5. Remove the differential drive pinion gear yoke (1) and oil seal.





6. With channel-locking pliers (4) and a wrench (1), install the J22536 to the drive pinion gear shaft (2).





7. Apply heavy hand pressure on J22536 toward the rear axle housing (2). This pressure keeps the outer drive pinion gear (1) bearing seated in order to avoid damage to the outer race.
8. Drive the pinion gear from the rear axle housing.
9. Remove and discard the drive pinion gear bearing spacer from the drive pinion gear.
10. Remove the drive pinion gear outer bearing from the rear axle housing.
11. Remove the inner and outer pinion bearing races from the axle housing, if replacing the pinion gear bearings.
Place the punch into the slots in the rear axle housing, alternating from side to side in order to evenly work the bearing races from the rear axle housing.





12. Assemble the J22912-01 onto the inner drive pinion gear bearing.
13. Place the drive pinion into a suitable press.
14. Press the drive pinion shaft from the bearing.