Tools Required

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation.
3. Remove the brake rotors. Refer to Rear Brake Rotor Replacement.
4. Remove the axle shafts. Refer to Rear Axle Shaft Replacement.
5. Remove the differential assembly. Refer to Differential Replacement.
6. Remove the drive pinion yoke and the oil seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement.




Important: Ensure that the J--22536 is firmly seated on the drive pinion.

7. Using the J 22536 and a hammer, remove the drive pinion. Do not let the pinion fall out of the rear axle housing.



8. Remove the collapsible spacer from the pinion. Discard the spacer.
9. Remove the pinion bearings and the cups. Refer to Drive Pinion Bearings Replacement.
10. Remove the left-hand threaded ring gear bolts. Discard the bolts.
11. Using a brass drift, remove the ring gear from the differential.

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

1. Install the ring gear to the differential case.

Important: Hand start each bolt to ensure that the ring gear is properly installed to the differential case.

2. Install the new ring gear bolts.

Notice: Refer to Fastener Notice in the Preface section.

3. Gradually tighten the new ring gear bolts in a criss cross pattern in order to seat the ring gear on the differential case.

Tighten
Tighten the ring gear bolts in sequence to 120 N·m (89 lb ft).

4. Install the drive pinion bearing cups. Refer to Drive Pinion Bearings Replacement.
5. Determine the selective shim thickness for the pinion gear. Refer to Pinion Depth Adjustment.
6. Install the selective shim onto the pinion.
7. Install the inner pinion bearing onto the pinion. Refer to Drive Pinion Bearings Replacement.
8. Install a new collapsible spacer.
9. Lubricate the pinion bearings with axle lubricant. Refer to Fluid and Lubricant Recommendations.
10. Install the pinion to the axle housing.
11. Install the outer pinion bearing.
12. Install the drive pinion flange and seal. Refer to Drive Pinion Flange/Yoke and/or Oil Seal Replacement.




Important: If the rotating torque is exceeded, the pinion will have to be removed and a new collapsible spacer installed.

13. While holding the J 8614-01 , tighten the pinion nut.

Tighten
Tighten the pinion nut until the pinion end play is just taken up. Rotate the pinion while tightening the nut to seat the bearings.




14. Using a inch-pound torque wrench, measure the rotating torque of the pinion.

Specification
The rotating torque of the pinion should be 1.0-2.3 N·m (10-20 lb in) for used bearings or 1.7-3.4 N·m (15-30 lb in) for new bearings.

15. If the rotating torque measurement is below 1.0 N·m (10 lb in) for used bearings, or 1.7 N·m (15 lb in) for new bearings, continue to tighten the pinion nut.

Tighten
Tighten the pinion nut, in small increments, as needed, until the torque required in order to rotate the pinion is 1.0-2.3 N·m (10-20 lb in) for used bearings or 1.7-3.4 N·m (15-30 lb in) for new bearings.

16. Once the specified torque is obtained, rotate the pinion several times to ensure the bearings have seated. Recheck the rotating torque and adjust if necessary.
17. Install the differential. Refer to Differential Replacement .
18. Perform a gear tooth contact pattern check on the pinion and the ring gear. Refer to Gear Tooth Contact Pattern Inspection.
19. Install the axle shafts. Refer to Rear Axle Shaft Replacement.
20. Install the brake rotors. Refer to Rear Brake Rotor Replacement.
21. Install the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation.
22. Fill the axle with axle lubricant. Use the proper fluid. Refer to Rear Axle Lubricant Replacement.
23. Remove the support and lower the vehicle.