Differential Carrier Bracket Replacement

Differential Carrier Bracket Replacement

Removal Procedure

Note: Some portions of the frame and under body have been removed for the clarity of the location of the differential carrier bracket.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
2. Remove the floor panel tunnel rear panel. Refer to Floor Panel Tunnel Panel Replacement - Rear (Floor Panel Tunnel Panel Replacement - Rear).




3. Support the rear differential carrier assembly with a suitable jack stand.




4. Remove the differential mounting bracket bolt (1) frame bracket.

Note: The following service procedure is to allow for enough clearance to remove the differential mounting bracket.

5. Loosen the 2 frame bracket bolts (2).





Note: DO NOT re-use the differential carrier bracket bolts. Discard and use NEW only.

6. Remove the 4 differential carrier mounting bracket bolts (1).
7. Remove the differential carrier mounting bracket (2).

Installation Procedure

1. Remove any thread locker from the bolt holes in the differential carrier with brake clean or equivalent.




2. Position the differential carrier bracket (2) on the differential.
3. Apply GM threadlocker P/N 89021297 (Canadian P/N 10953488) or equivalent to the NEW differential carrier bracket bolts (1).

Caution: Refer to Fastener Caution (Fastener Caution).

4. Install the 4 NEW differential carrier bracket bolts (1) and tighten to 80 Nm (59 lb ft).




5. Hand tighten the differential frame bracket to differential carrier bolt (1).
6. Install the 2 differential carrier bracket to frame bolts (2) and tighten to 110 Nm (81 lb ft) plus 20 degrees.
7. Tighten the differential carrier bracket bolt (1) to 175 Nm (122 lb ft).




8. Remove the jack stand.
9. Install the floor panel tunnel rear panel. Refer to Floor Panel Tunnel Panel Replacement - Rear (Floor Panel Tunnel Panel Replacement - Rear).
10. Remove the support and lower the vehicle.