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

Caution: Refer to Brake Fluid Irritant Caution in the Preface section.

Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in the Preface section.

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
3. Remove the brake drum. Refer to Brake Drum Replacement .
4. Remove the brake shoes. Refer to Brake Shoe Replacement .



5. Clean the dirt and foreign material around the wheel cylinder.
6. Remove the bleeder valve (1).

Important: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent brake fluid loss and contamination.

7. Disconnect the brake pipe fitting from the wheel cylinder. Plug the open brake pipe ends.
8. Remove the wheel cylinder mounting bolts (2).
9. Remove the wheel cylinder (3).

1. Apply THREADLOCKER, GM P/N 12345382 , (Canadian P/N 10953489), or equivalent to the wheel cylinder shoulder face that contacts the backing plate.
2. Position the wheel cylinder (3) to the backing plate.

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.

3. Install the wheel cylinder mounting bolts (2).

Tighten
Tighten the wheel cylinder mounting bolts to 12 N·m (106 lb in).

4. Remove the plugs from the brake pipe ends.
5. Connect the brake pipe fitting to the wheel cylinder.

Tighten
Tighten the fitting to 15 N·m (11 lb ft).

6. Install the bleeder valve (1).

Tighten
Tighten the valve to 7 N·m (62 lb in).

7. Install the brake shoes. Refer to Brake Shoe Replacement .
8. Adjust the drum brakes. Refer to Drum Brake Adjustment .
9. Install the brake drum. Refer to Brake Drum Replacement .
10. Bleed the brake hydraulic system. Refer to Hydraulic Brake System Bleeding in Hydraulic Brakes.
11. Adjust the parking brake. Refer to Park Brake Adjustment in Park Brake.
12. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
13. Lower the vehicle.