GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 General Information 🢒 General Information 🢒 Front Axle Lubricant Replacement

Removal Procedure
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .

    2. Object Number: 730544 Size: SH
  2. Remove the fill plug.
  3. Remove the front axle housing cover bolts.

    4. Discard the bolts.

  4. Remove the front axle housing cover.

    5. Drain the lubricant into a suitable container.

  5. Remove the sealant from the front axle housing and the front axle housing cover.

Installation Procedure

    Object Number: 739939 Size: SH
  1. Apply an approximately 3.18-6.35 mm (1/8-1/4 in) high and 3.18-6.35 mm (1/8-1/4 in) wide bead of sealant, GM P/N 12346240 (Canadian P/N 10953493) or equivalent, to the front axle housing cover.

    2. The sealant is to be applied in the middle of the front axle housing cover flange and on the inside of all bolt hole openings as shown.


    Object Number: 730544 Size: SH
  2. Install the front axle housing cover.

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

  3. Install the new front axle housing cover bolts.

    4. Tighten
    Tighten the front axle housing cover bolts to 61 N·m (45 lb ft).

    Important: Allow the sealant to cure for 1 hour before filling the axle with axle lubricant.

  4. Fill the front axle with axle lubricant. Use the proper fluid. Refer to Approximate Fluid Capacities and Fluid and Lubricant Recommendations .
  5. Install the front axle fill plug.

    6. Tighten
    Tighten the front axle fill plug to 33 N·m (24 lb ft).

  6. Lower the vehicle.