GM Service Manual Online
For 1990-2009 cars only
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Inspect the front axle for leaks. Repair as necessary.
  3. Clean the area around the front axle fill plug.

  4. Object Number: 1199445  Size: SH
  5. Remove the fill plug.
  6. Inspect the oil level.
  7. Specification
    The oil level should be between 0-10 mm (0-0.38 in) below the bottom of the fill plug opening.

  8. If the level is low, add oil until the level is even with the bottom of the edge of the fill plug opening. Use the proper fluid. Refer to Fluid and Lubricant Recommendations .
  9. Notice: Refer to Fastener Notice in the Preface section.

  10. Install the fill plug.
  11. Tighten
    Tighten the fill plug to 33 N·m (24 lb ft).

  12. Lower the vehicle.