GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

J 38400

Caution: Keep fingers away from rear brake shoe springs to prevent fingers from being pinched between spring and shoe web or spring and backing plate.

  1. Remove the brake drum. Refer to Brake Drum Replacement

  2. Object Number: 142285  Size: SH

    Notice: Do not over stretch the adjuster spring. Damage can occur if the spring is over stretched.

  3. Use the J 38400 in order remove the adjuster spring (1). Disengage the adjuster spring loop from the tab on the adjuster actuator.
  4. 2.1. Remove the loop end of the adjuster spring from the adjuster actuator.
    2.2. Remove the straight end of the adjuster spring from the secondary brake shoe.

    Object Number: 142293  Size: SH
  5. Use the J 38400 in order to spread the brake shoes apart.
  6. Remove the adjuster.

Installation Procedure


    Object Number: 142293  Size: SH
  1. Use the J 38400 in order to spread the brake shoes apart.

  2. Object Number: 178990  Size: SH

    Important: Ensure that the adjuster (2) engages the brake shoes (4 and 5), the park brake actuator (3), and the adjuster actuator (1) properly.

  3. Install the adjuster.

  4. Object Number: 142285  Size: SH

    Notice: Do not over stretch the adjuster spring. Damage can occur if the spring is over stretched.

  5. Use the J 38400 in order to install the adjuster spring (1).
  6. 3.1. Install the straight end of the adjuster spring into the secondary brake shoe.
    3.2. Install the loop end of the adjuster spring to the adjuster actuator.
  7. Install the brake drum. Refer to Brake Drum Replacement