GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Axle Lubricant Change

Draining Procedure

    Object Number: 814134 Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Clean any dirt from around the differential drain plug.
  3. Position a drain pan under drain plug.
  4. Remove the drain plug from the differential and drain the fluid.

Filling Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 814134 Size: SH
  1. Install the drain plug to the differential.

    2. Tighten
    Tighten the differential drain plug to 39 N·m (29 lb ft).


    Object Number: 814133 Size: SH
  2. Clean any dirt from around the differential fill plug.
  3. Remove the fill plug from the differential.

    4. Important: If equipped with a limited slip differential, limited slip differential lubricant additive, GM P/N 1052358 (Canadian P/N 992394) or equivalent must be added first. Refer to Lubrication Specifications . Approximately 0.23 L (7.8 oz) of residual fluid will remain in the differential.

  4. Fill the differential with 75W90 synthetic axle lubricant , GM P/N 12378261 (Canadian P/N 10953455) or equivalent. Refer to Lubrication Specifications .
  5. Inspect the gear lubricant level to ensure it is even with the bottom of the fill plug hole to no lower than 6 mm (0.25 in) below the opening.
  6. Install the fill plug to the differential.

    7. Tighten
    Tighten the fill plug to 39 N·m (29 lb ft).

  7. Lower the vehicle.