GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1265722  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the brake drum. Refer to Brake Drum Replacement .
  3. Remove the following components:
  4. • Retaining spring plate
    • Retaining spring
    • Retaining spring pin

    Object Number: 1265723  Size: SH
  5. Disconnect the upper link of the connecting link spring of the leading shoe. This relieves tension on the upper return spring.
  6. Remove the upper return spring and the adjuster.

  7. Object Number: 1265724  Size: SH
  8. Remove the leading shoe by unlatching the shoe from the lower return spring.
  9. Remove the lower return spring.

  10. Object Number: 1265725  Size: SH
  11. Remove the middle spring and the adjuster lever.

  12. Object Number: 1265726  Size: SH
  13. Disconnect the trailing shoe and the lining assembly.

Installation Procedure

    Caution: Refer to Safety Glasses Caution in the Preface section.

    Important: Before installing the components note the following procedures:

       • Measure the minimum brake lining thickness.
       • Clean the adjuster assembly and apply grease.
       • Inspect the parts for heat discoloration, excessive stress or wear. If necessary, replace the shoes, the springs or the adjuster assembly.
       • Inspect the threads of the adjuster assembly for smooth rotation.
       • Do not overstretch the lower return spring and the upper return spring.
       • Before installing the brake drum, ensure the adjuster assembly nut is drawn all the way to the stop. The nut must not lock firmly at the end of the adjustment assembly.


    Object Number: 1265726  Size: SH
  1. Connect the trailering shoe and the lining assembly.

  2. Object Number: 1265725  Size: SH
  3. Install the middle spring and the adjuster lever.

  4. Object Number: 1265724  Size: SH
  5. Install the lower return spring.
  6. Install the leading shoe by latching the shoe to the lower return spring.

  7. Object Number: 1265723  Size: SH
  8. Install the upper return spring and the adjuster.
  9. Connect the upper link of the connecting link spring of the leading shoe.

  10. Object Number: 1265722  Size: SH
  11. Install the following components:
  12. • Retaining spring pin
    • Retaining spring
    • Retaining spring plate
  13. Install the brake drum.