Differential Carrier: Service and Repair

Differential Carrier Assembly Replacement

Removal Procedure

Note
The following service procedure is also to include those vehicles with RPO G96.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
2. If replacing the rear differential assembly, drain the rear differential fluid.
3. Remove the propeller shaft assembly.
4. Remove the exhaust muffler assembly.
5. Remove the electronic park brake control module.
6. Remove the wheel drive shaft.
7. Disconnect the electrical connectors from the rear differential assembly to the chassis.

8. Note
Ensure that the rear differential is securely fastened to the hydraulic jack stand.

Support the rear differential assembly with a hydraulic transmission jack.9. Remove the rear differential assembly mounting bolts (1).





10. Remove the front differential mounting bolts (1).





11. Using the hydraulic jack stand, remove the rear differential assembly (1) from the vehicle.





12. Remove the differential clutch assembly, if needed.

Installation Procedure

1. Install the differential clutch assembly, if removed.
2. Using the hydraulic jack stand, position the rear differential assembly (1) in the vehicle.





3. Clean the bolts and apply thread locker on the threads.





4. Refer to Fastener Caution.

Install the front differential mounting bolts (1) and tighten to 40 Nm (30 lb ft) + 90 degrees.

5. Install the rear differential unit's mounting bolts (1) and tighten to 40 Nm (30 lb ft) + 90 degrees.





6. Remove the hydraulic jack stand.
7. Install the wheel drive shafts.
8. Install the electronic park brake control module.
9. Reconnect the electrical connectors from the rear differential assembly to the chassis.
10. Install the exhaust muffler assembly.
11. Install the propeller shaft assembly.
12. Check the fluid level of the rear differential assembly.
13. If installing a NEW rear differential assembly, fill with the proper fluid.
14. Remove the supports and lower the vehicle.