Rear Axle Hub, Bearing, Cup, and/or Seal Replacement

Rear Axle Hub, Bearing, Cup, and/or Seal Replacement


Special Tools
* J 8092 Universal Driver Handle - 3/4 inch - 10
* J 2222-C Wheel Bearing Nut Wrench
* J 24426 Wheel Bearing Race Installer - Outer
* J 24427 Wheel Bearing Race Installer - Inner
* J 44419 Hub Outer Bearing Race Installer
* J 44420 Differential Bearing and Hub Seal Installer



Removal Procedure

Important: The wheel hub seal must be replaced anytime the wheel hub assembly is removed from the axle housing.



1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
3. Remove the brake caliper bracket. It is not necessary to remove the brake caliper from the bracket. Refer to Rear Brake Caliper Bracket Replacement (JH6, JH7) Rear Brake Caliper Bracket Replacement (JD9) .
4. Remove the axle shaft. Refer to Rear Axle Shaft and/or Gasket Replacement (Rear Axle Shaft and/or Gasket Replacement) .




5. Remove the axle nut retaining ring.




6. Remove the key.




7. Remove the adjusting nut using the J 2222-C .




8. Remove the adjusting nut.





Important: If the oil seal remains on the axle hub, remove the seal using a suitable seal removal tool.


9. Remove the hub from the axle housing.
10. Remove the rotor, if necessary. Refer to Rear Brake Rotor Replacement (JD9) Rear Brake Rotor Replacement (JH6) Rear Brake Rotor Replacement (JH7) .
11. Remove the oil seal from the wheel hub using a suitable seal removal tool.




12. Remove the inner hub bearing.




13. Remove the inner hub bearing cup using a brass drift and a hammer.




14. Remove the retaining ring from the wheel hub.




15. Remove the outer hub bearing and bearing cup using the J 24426 (2) and the J 8092 (1).



Installation Procedure

1. Lubricate the following with a light coat of high melting point EP bearing lubricant:

* The outer wheel bearing
* The inner wheel bearing
* The outer wheel bearing cup
* The inner wheel bearing cup
* The axle hub spindle





2. Install the outer bearing into the wheel hub.




3. Install the outer bearing cup into the wheel hub.




4. Drive the outer bearing cup into the wheel hub using the J 44419 (2) and the J 8092 (1).
Drive the outer bearing cup into the wheel hub until it is just past the retaining ring groove. Do not bottom out the bearing assembly in the bore.




5. Install the retaining ring into the groove. Make sure the retaining ring is fully and evenly seated in the groove.




6. Turn the wheel hub over and seat the outer bearing assembly against the retaining ring using the J 24426 (2) and the J 8092 (1).
7. Ensure that the outer bearing assembly rotates freely in the hub.




8. Turn the wheel hub over and install the inner bearing cup.




9. Drive the inner bearing cup into the wheel hub using the J 24427 (2) and the J 8092 (1).




10. Install the inner bearing.




11. Using the J 44420 (2) and the J 8092 (1), install the new oil seal. Ensure the seal is fully seated in the hub bore.
12. Install the rotor, if necessary. Refer to Rear Brake Rotor Replacement (JD9) Rear Brake Rotor Replacement (JH6) Rear Brake Rotor Replacement (JH7) .
13. Apply a light coat of high melting point EP bearing lubricant to the axle housing spindle.





Important: If the wheel hub assembly does not fully seat itself onto the axle shaft spindle and is removed, the wheel hub seal must be replaced.


14. Install the wheel hub to the axle housing.




15. Install the adjusting nut to the hub using the J 2222-C .
16. Adjust the wheel bearings. Refer to Wheel Bearing Adjustment (Wheel Bearing Adjustment) .
17. Install the axle shaft. Refer to Rear Axle Shaft and/or Gasket Replacement (Rear Axle Shaft and/or Gasket Replacement) .
18. Install the brake caliper bracket. Refer to Rear Brake Caliper Bracket Replacement (JH6, JH7) Rear Brake Caliper Bracket Replacement (JD9) .
19. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation (Service and Repair) .
20. Inspect and add axle lubricant to the axle housing, if necessary. Refer to Rear Axle Lubricant Level Inspection (11.5 Inch Axle) (Rear Axle Lubricant Level Inspection (11.5 Inch Axle))Rear Axle Lubricant Level Inspection (8.6, 9.5 LD Axle) (Rear Axle Lubricant Level Inspection (8.6, 9.5 LD Axle))Rear Axle Lubricant Level Inspection (10.5 Inch Axle) (Rear Axle Lubricant Level Inspection (10.5 Inch Axle)) .
21. Lower the vehicle.