Inspect the brake linings for cracking, glazing, contamination and wear. If any one shoe is damaged or beyond specification, replace the shoes as a set. Brake shoe lining thickness specifications:
REMOVAL & INSTALLATION
- Raise and safely support the rear of the vehicle.
- Remove the rear tire/wheel assemblies.
- Remove the brake drums.
- Place a small paint stick or ruler between the wheel cylinder and rear brake shoe.
- Clamp a pair of locking pliers securely onto the backing plate at the center of the rear brake shoe.
- Using locking needle-nose pliers, clamp onto the upper brake spring where the brake adjuster meets the rear shoe. Pull back on the spring and remove it.
- Remove the lower return spring.
- Support the back of the brake shoe retainer pin with a finger, and using the special brake tool, or clamping needle-nose pliers, grasp the top of the retainer spring, press inward and turn 90° to release it from the pin.
- Place a suitable elastic band around the wheel cylinder to keep the pistons in place.
- Remove the front brake shoe, brake adjuster and related components, then use a pair of suitable pliers to pull the parking brake cable out of the bracket for the rear brake shoe.
- Place the brake shoe in a vise so that the jaws do not contact the brake lining, and the pivot pin head and the lever arm are supported.
- Use a hammer and chisel to drive the U-clip off the pin, then remove the lever arm.
- Inspect the wheel cylinder for seepage, leaks or damage and replace as necessary.
- Clean the lever arm and lubricate the pivot point and transfer to the replacement brake shoe.
- Install the lever arm and brake shoe into the vise, install an new washer, and U-clip, bending the open end of the U-clip closed with flat-nosed pliers.
Clean and lubricate the following with an approved high temperature brake grease:
Brake adjuster threads and clevis pivot
- Install the brake cable into the rear shoe lever arm, then install the rear shoe onto the backing plate with new retaining pins and springs.
- Install the paint stick, or suitable ruler, between the rear shoe and the wheel cylinder.
- Clamp locking pliers securely onto the backing plate at the center of the rear brake shoe.
- Install the brake adjuster along with the upper and lower springs onto the front shoe, then hook the lower spring into the rear shoe as the front shoe is installed onto the backing plate. Secure the front shoe to the backing plate using a new retaining pin and spring.
- Remove the elastic band used around the wheel cylinder to keep the pistons in place.
- Using locking needle-nose pliers, clamp onto the upper brake spring where the brake adjuster meets the rear shoe. Pull back on the spring and install it onto the rear shoe.
- Remove the locking pliers, and paint stick or ruler. Clean and install the brake drum, and hold in place with two lug nuts.
- Rotate the brake drum and using a flat blade screwdriver, adjust the brake adjuster until a very light scuffing noise is heard when rotating the drum. If necessary, remove the drum to rotate the adjustment star wheel.
- Install the wheel/tire assemblies, carefully lower the vehicle and torque the lug nuts to specification.
- Pump the brake pedal repeatedly several times to set the brake adjusters. If brake pedal pressure is acceptable, test drive the vehicle slowly for approximately 5 minutes and press the brake pedal several times while backing up and pulling forward to set the adjusters and seat the brake shoes.
- Check and top off the brake fluid reservoir as necessary.
- Check the parking brake adjustment and adjust as necessary.