Inspect the brake shoes for peeling, cracking, or extremely uneven wear on the lining. Check the lining thickness using calipers. If the brake lining is less than 0.040 in. (1mm), the shoes must be replaced. The shoes must also be replaced if the linings are contaminated with brake fluid or grease.
REMOVAL & INSTALLATION
- Remove the wheel and tire assembly and the brake drum. Clean the brake assembly using brake cleaner.
- Remove the brake shoe return springs and anti-rattle spring.
- Remove the brake shoe hold-down springs. Push the hold-down spring inward using a screwdriver, and twist the hold-down pin using needle nose pliers until the head of the pin aligns with the slot in the spring. Release the spring and pin.
- Remove the front and rear brake shoes from the parking brake strut.
- Inspect the anti-rattle and return springs for separated or twisted coils, twisted, bent or damaged shanks or discoloration. Discoloration indicates brake overheating; overheated springs lose some of their tension and should be replaced.
- Using high temperature grease, lubricate the 6 shoe contact pads and the adjuster mechanism.
- Position the rear brake shoe in the parking brake strut and install the rear hold-down pin and spring.
- Position the front brake shoe against the parking brake strut and backing plate and install the hold-down pin and spring.
- Install the brake shoe return springs.
- Insert a small prybar between the knurled quadrant and the parking brake strut; twist the prybar until the quadrant just touches the backing plate.
- Install the brake drum, and wheel and tire assembly. Lower the vehicle.
- Firmly apply the brakes 2-3 times to adjust the rear brakes.