Differential Carrier Disassembly

Part 1 Of 2:

Part 2 Of 2:

REMOVE OR DISCONNECT
^ Tools Required:
- J 3289-20 Holding Fixture Base
- J 3289-21 Holding Fixture
- J 37769 Differential Holding Fixture Adapters
- J 8614-01 Flange Holder
- J 22912-01 Rear Bearing Remover
- J 22888-D Side Bearing Remover
- J 8107-4 Differential Side Bearing Remover Plug
- J 26941 Knuckle Seal Remover
- J 23907 Slide Hammer

1. Mount differential carrier in J 34162-A with J 37769.





2. Place differential carrier and holding fixture into J 3289-20.
3. Inscribe alignment marks on differential side bearing caps to ensure proper assembly.





4. Two bolts and side bearing lock plates from differential carrier.





5. Four bolts and side bearing caps from differential carrier.





6. Side bearing adjusters and bearing races from differential carrier.
7. Differential ring gear and case from differential carrier.
8. Turn differential carrier and holding fixture over so that pinion flange nut is horizontal (90°).
9. Unstake pinion flange nut.









10. Pinion flange nut from pinion gear using J 8614-01 to hold the pinion flange stationary.





11. Pinion gear from differential carrier.





12. Pinion seal from differential carrier using J 26941 with J 23907.





13. Outer pinion bearing from differential carrier.








14. Inner and outer pinion bearing races from differential carrier using a large drift punch and hammer. Tap around the rear of each bearing race and slowly drive each race out evenly.





15. Side bearings from differential case using J 22888-D with J 8107-4.





16. Ten bolts and ring gear from differential case.





17. Pinion shaft roll pin, pinion shaft, differential pinion gears, washers and side gears with selective washers from differential case.





18. Inner pinion bearing and collapsible spacer from pinion gear shaft using J 22912-01. Place J 22912-01 on the pinion gear shaft with the concave side toward the pinion gear. Then place the pinion gear in a hydraulic press and remove the inner pinion bearing.
19. Pinion selective shim from pinion gear shaft.

Clean
- All parts thoroughly with clean solvent and air dry. If compressed air is used to dry parts, DO NOT spin dry roller bearings with compressed air or bearing damage may result.

Inspect





1. Differential carrier and case for cracks or stripped threads and repair or replace as necessary.





2. Ring and pinion gears for excessive or unusual wear, cracks, overheating or other damage and replace as necessary.
3. All roller bearings and races for roughness, locking, or other wear or damage and replace as necessary.
4. Side and differential pinion gears for unusual wear or damage and replace as necessary.

Important: Differential components are set to very close tolerances and prone to wear should one component fail. Therefore, to ensure accurate adjustment and even wear, the ring and pinion gears as well as all tapered roller bearings and races must be replaced as sets.