Removal and Replacement

Lubricant Change

Removal Procedure





1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the drain plug and gasket from the rear differential housing.



Installation Procedure


Notice: Refer to Fastener Notice .





1. Install the drain plug and gasket.

Tighten the plug to 35 N.m (26 lb ft).





2. Remove the fill plug and gasket from the rear differential housing.
3. Fill the rear differential with synthetic gear oil GM P/N 89021677 (Canadian P/N 89021678). Refer to Approximate Fluid Capacities .
4. Inspect the gear oil level to ensure it is even with the bottom of the fill plug.
5. Install the fill plug and gasket in the rear differential housing.

Tighten the plug to 35 N.m (26 lb ft).

6. Remove the support and lower the vehicle.