GM Service Manual Online
For 1990-2009 cars only

Special Tools

CH 346 Mounting Tool

For equivalent regional tool, refer to Special Tools.

Removal Procedure

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

  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: 2027552  Size: SH

    Caution: 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, then release the spring from the brake shoe web hole.

  6. Object Number: 2027578  Size: SH
  7. Remove the brake shoe springs (1), using the CH 346 mounting tool to twist spring caps (2).
  8. Remove the lower spring from front brake shoe.

Installation Procedure


    Object Number: 2027578  Size: SH
  1. Install the lower spring to front brake shoe.
  2. Install the brake shoe springs (1), using the CH 346 mounting tool to twist spring caps.

  3. Object Number: 2027552  Size: SH
  4. Install the adjuster spring (1). Ensure that the loop end of the spring fully engages the tab on the actuator lever. Ensure that the loop end of the spring fully engages the tab on the actuator lever.
  5. Install the brake drum. Refer to Brake Drum Replacement.
  6. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
  7. Lower the vehicle.