GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 176319  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the brake drum. Mark the relationship of the drum to the axle flange in order to ensure proper balance upon reassembly.
  3. Remove the brake shoes. Refer to Brake Shoe Replacement .
  4. Remove the wheel cylinder. Refer to Wheel Cylinder Replacement .
  5. Remove the park brake cable from the backing plate.
  6. Remove the hub and bearing assembly (1). Refer to Rear Wheel Bearing and Hub Replacement in Rear Suspension.
  7. Remove the backing plate (4).

Installation Procedure


    Object Number: 176319  Size: SH

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the wheel cylinder to the backing plate. Refer to Wheel Cylinder Replacement .
  2. Install the backing plate (4) to the axle assembly.
  3. Install the hub and bearing assembly (1). Refer to Rear Wheel Bearing and Hub Replacement in Rear Suspension.
  4. Install the park brake cable to the backing plate.
  5. Notice: Brake fluid will damage painted surfaces. Shop cloths and clean containers should be used to prevent spillage of brake fluid.

  6. Install the brake shoes. Refer to Brake Shoe Replacement .
  7. Adjust the rear brake assembly. Refer to Drum Brake Adjustment .
  8. Bleed the brake system. Refer to Hydraulic Brake System Bleeding in Hydraulic Brakes.
  9. Lower the vehicle.