GM Service Manual Online
For 1990-2009 cars only

Front Axle Lubricant Level Inspection 8.25 Inch Axle

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Make sure the vehicle is level.
  3. Inspect the front axle for leaks. Repair as necessary.
  4. Clean the area around the front axle fill plug.

  5. Object Number: 1690153  Size: SH
  6. Remove the front axle fill plug (1).
  7. Inspect the oil level.
  8. Specification
    The 8.25 inch axle the oil level should be between 12-16 mm (0.50-0.625 in) below the fill plug opening.

  9. If the level is low, add oil until the level is between 12-16 mm (0.50-0.625 in) for the 8.25 inch axle. Use the correct fluid. Refer to Adhesives, Fluids, Lubricants, and Sealers.
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Install the fill plug and tighten to 33 N·m (24 lb ft).
  12. Lower the vehicle.

Front Axle Lubricant Level Inspection 9.25 Inch Axle

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Make sure the vehicle is level.
  3. Inspect the front axle for leaks. Repair as necessary.
  4. Clean the area around the front axle fill plug.

  5. Object Number: 1689729  Size: SH
  6. Remove the front axle fill plug (1).
  7. Inspect the oil level.
  8. Specification
    The 9.25 inch axle the oil level should be between 0-6 mm (0-0.25 in) below the fill plug opening.

  9. If the level is low, add oil until the level is between 0-6 mm (0-0.25 in) for the 9.25 inch axle. Use the correct fluid. Refer to Adhesives, Fluids, Lubricants, and Sealers.
  10. Caution: Refer to Fastener Caution in the Preface section.

  11. Install the fill plug and tighten to 33 N·m (24 lb ft).
  12. Lower the vehicle.