REMOVAL & INSTALLATION
See Figure 1
- Raise and support the vehicle safely. Remove the tire and wheel assembly. Remove the brake drum and shoes.
- Disconnect the parking brake cable and brake lines from the backing plate; be sure to have a drip pan to catch the brake fluid.
- Remove the two wheel cylinder-to-backing plate nuts and the wheel cylinder.
You should have another wheel cylinder ready to go on to minimize fluid loss.To install:
- Apply a thin coat of grease to the grooves of the wheel cylinder piston and the sliding surfaces of the backing plate.
- Replace the wheel cylinder and the brake assembly parking brake cable.
See Figures 2 through 7
Remove the wheel cylinder dust seals from the grooves to permit the removal of the cylinder pistons.
Wash all parts in fresh brake fluid and check the cylinder bore and pistons for scratches and other damage, replacing where necessary. Check the clearance between the piston and the cylinder bore by taking the difference between the piston diameter and the bore diameter. The specified clearance is 0.0008-0.004 in. (0.020-0.100mm).
When assembling the wheel cylinder, apply a coat of brake fluid to the pistons, piston cups and cylinder walls.