Tools Required

J 38400 Brake Shoe Spanner and Spring Remover

Caution: Keep fingers away from rear brake shoe springs to prevent fingers from being pinched between spring and shoe web or spring and backing plate.

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Remove the tire and wheel.

•	For vehicles with steel wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

•	For Chevrolet and Oldsmobile vehicles with aluminum wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

•	For Pontiac and Export vehicles with aluminum wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

3. Clean all dirt and foreign material from the wheel cylinder brake pipe fitting and the bleeder valve.



4. Remove the brake drum. Refer to Brake Drum Replacement .
5. Remove the brake pipe nut.
6. Install a cap over the end of the brake pipe in order to prevent brake fluid loss and/or brake fluid contamination.



7. Remove the wheel cylinder bolts (2).



8. Use the J 38400 in order to spread the brake shoes apart.
9. Remove the wheel cylinder (3).
10. Clean the old sealant from the backing plate where the wheel cylinder was installed. Clean the sealant from the wheel cylinder if you are reusing the wheel cylinder.

1. Apply LOCTITE® GM P/N 12345382 (or equivalent) to the wheel cylinder shoulder face which contacts the backing plate.



2. Use the J 38400 in order to spread the brake shoes apart.



3. Install the wheel cylinder (3).

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.

4. Install the wheel cylinder bolts (2).

Tighten
Tighten the bolts to 12 N·m (110 lb in).

5. Remove the cap from the brake pipe and install the brake pipe to the wheel cylinder.

Tighten
Tighten the nut to 17 N·m (12 lb ft).

6. Bleed the hydraulic brake system at the wheel cylinder. Refer to Hydraulic Brake System Bleeding in Hydraulic Brakes.
7. Install the brake drum. Refer to Brake Drum Replacement .
8. Install the tire and wheel.

•	For vehicles with steel wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

•	For Chevrolet and Oldsmobile vehicles with aluminum wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

•	For Pontiac and Export vehicles with aluminum wheels, refer to Tire and Wheel Removal and Installation in Tires and Wheels.

9. Lower the vehicle.