GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 GMC C Sierra - 2WD 🢒 General Information 🢒 General Information 🢒 Front Axle Lubricant Level Inspection
  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: 339436 Size: SH
  5. Remove the front axle fill plug (1).
  6. Inspect the oil level.

    7. Specification

        • For the 8.25 inch axle, the oil level should be between 12-16 mm (0.50-0.625 in) below the fill plug opening.
        • For the 9.25 inch axle, the oil level should be between 0-6 mm (0-0.25 in) below the fill plug opening.
  7. 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 or 0-6 mm (0-0.25 in) for the 9.25 inch axle. Use the correct fluid. Refer to Adhesives, Fluids, Lubricants, and Sealers .

    8. Notice: Refer to Fastener Notice in the Preface section.

  8. Install the fill plug.

    9. Tighten
    Tighten the plug to 33 N·m (24 lb ft).

  9. Lower the vehicle.