GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

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

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

  2. Object Number: 2178347  Size: SH
  3. Remove the brake shoe adjuster actuator lever spring (1).

  4. Object Number: 2178348  Size: SH
  5. Remove the adjuster actuator lever (1).

  6. Object Number: 2178349  Size: SH
  7. Spread the brake shoes apart slightly and remove the brake shoe adjuster (1).
  8. Inspect and replace any missing, worn, or damaged drum brake adjuster hardware. Refer to Drum Brake Adjusting Hardware Inspection.

Installation Procedure

  1. Disassemble, clean and lubricate the threads of the brake shoe adjuster with high temperature brake lubricant.
  2. Assemble the brake shoe adjuster.

  3. Object Number: 2178349  Size: SH
  4. Spread the brake shoes apart slightly and install the brake shoe adjuster (1).

  5. Object Number: 2178348  Size: SH
  6. Install the adjuster actuator lever (1) to the pivot pin on the primary brake shoe.

  7. Object Number: 2178347  Size: SH
  8. Install the brake shoe adjuster actuator lever spring (1).
  9. Install the brake drum. Refer to Brake Drum Replacement.