GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1848813  Size: SH
  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 in the Preface section.


    Object Number: 1848813  Size: SH
  1. Install the drain plug and gasket.
  2. Tighten
    Tighten the plug to 35 N·m (26 lb ft).


    Object Number: 1848811  Size: SH
  3. Remove the fill plug and gasket from the rear differential housing.
  4. Fill the rear differential with synthetic gear oil GM P/N 89021677 (Canadian P/N 89021678). Refer to Approximate Fluid Capacities .
  5. Inspect the gear oil level to ensure it is even with the bottom of the fill plug.
  6. Install the fill plug and gasket in the rear differential housing.
  7. Tighten
    Tighten the plug to 35 N·m (26 lb ft).

  8. Remove the support and lower the vehicle.