GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 41013 Rotor/Drum Flange Resurfacing Kit
    • J 42450-A Hub Cleaning Kit

Removal Procedure

Caution: Refer to Brake Dust Caution in the Preface section.


    Object Number: 390075  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Index the relationship of the drum to the axle flange.
  4. Notice: Do not pry against the splash shield or backing plate in attempt to free the drum. This will bend the splash shield or backing plate. A bent backing plate may cause brake chatter and/or pulsation.

  5. Remove the brake drum. Complete the following steps if difficulty is encountered when removing the brake drum:
  6. 4.1. Remove the retainer clips.
    4.2. Verify that the parking brake is released.
    4.3. Use a rubber mallet in order to tap gently on the outer rim of the drum and/or around the inner drum diameter by the spindle. Do not use excessive force, which may deform the drum.

Installation Procedure


    Object Number: 390075  Size: SH
  1. Use the J 42450-A to clean the hub .
  2. Clean the mating surface on the inside of the brake drum. Using the J 41013 .
  3. Install the brake drum. Align the marks made during the brake drum removal.
  4. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  5. Lower the vehicle.