GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 38400 Brake Shoe Spanner and Spring Remover

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

Removal Procedure

  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  3. Remove the brake drum. Refer to Brake Drum Replacement .

  4. Object Number: 891440  Size: SH

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

  5. Remove the adjuster spring (1). Disengage the adjuster spring hook end from the tab on the adjuster actuator lever (2), then release the spring from the brake shoe web hole.
  6. Remove the adjuster actuator lever (2) from the pivot.

  7. Object Number: 890724  Size: SH
  8. Using the J 38400  (1), spread the top of the brake shoes apart.
  9. Remove the adjuster assembly (2) and inspect for the following conditions:
  10. • Binding or seized threaded adjuster assembly.
    • Damaged or missing adjuster screw teeth.
  11. Replace the adjuster assembly if any of the conditions listed are present.

Installation Procedure


    Object Number: 890724  Size: SH
  1. Using the J 38400  (1), spread the top of the brake shoes apart.
  2. Install the adjuster assembly (2) to the brake shoes.

  3. Object Number: 891440  Size: SH
  4. Install the adjuster actuator lever (2) to the brake shoe and the adjuster assembly (3). Ensure that the lever is properly engaged between the adjuster assembly and the brake shoe.
  5. Notice: Do not over stretch the adjuster spring. Damage can occur if the spring is over stretched.

  6. Install the adjuster spring (1). Ensure that the loop end of the spring fully engages the tab on the actuator lever (2).
  7. Adjust the drum brakes. Refer to Drum Brake Adjustment .
  8. Install the brake drum. Refer to Brake Drum Replacement .
  9. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
  10. Lower the vehicle.