- Remove and discard 2/3 of brake fluid in master cylinder reservoir. Raise vehicle on hoist. Remove wheel and tire. Replace 1 lug nut (flat side toward rotor) to prevent rotor from falling off when caliper is removed.
NOTE:
Mark relationship of wheel to axle flange before removing wheels.
- Loosen tension on parking brake cable at equalizer and disconnect brake cable from parking brake lever. Remove cable bracket from caliper. Remove return spring, lock nut, lever, lever seal and anti-friction washer.
NOTE:
Lever must be held in place while removing nut.
- Clean any dirt from caliper in area of lever seal. Using a large "C" clamp, place solid end on lever stop and screw end on back of outer lining assembly. Turn clamp until piston bottoms in caliper. Remove "C" clamp.
NOTE:
Do not position "C" clamp on actuator screw.
- Lubricate caliper housing surface under lever seal with silicon brake lubricant. Install new anti-friction washer. Lubricate new lever seal with silicon and install with sealing bead against housing. Install lever on actuator screw with lever pointing down.
- Remove brake line from caliper. Plug opening to prevent fluid loss to keep dirt out of system. Remove caliper mounting bolts. Remove caliper with brake shoes. Inspect caliper assembly for damage, cuts, cracks or excessive leakage. Replace or repair as necessary. Remove and discard 2 caliper mounting sleeve and 4 bushings. Remove and discard piston check valve.
Courtesy of GENERAL MOTORS COMPANY