Rear

REMOVAL - DISC BRAKE SHOES (REAR)

NOTE: Review all Warnings and Cautions.

1. Raise vehicle.
2. Remove the tire and wheel assembly from the vehicle.

CAUTION: Do not attempt to press the caliper piston back into the bore at this time. A special procedure and service tool are required to do this. If the required procedure is not used to press the piston back into the bore, the caliper will be destroyed.





3. Remove the two guide pin bolts securing the disc brake caliper to the caliper adapter.
4. Slide the caliper off the adapter and brake shoes. Hang the caliper out of the way using a wire or bungee cord. Use care not to overextend the brake hose when doing this, damage may result.





5. Remove the brake shoes from the disc brake caliper adapter.

INSTALLATION - DISC BRAKE SHOES (REAR)

CAUTION: The rear caliper piston must be seated (bottomed) to compensate for new brake lining. However, because the parking brake self-adjuster mechanism is attached to the piston, a different seating method is required. The only acceptable method is by rotating the piston back into the bore with Special Tool 8807 as described below. Any other seating method will damage the self-adjuster mechanism.

1. Seat (bottom) the caliper piston in the bore as follows:
a. Assemble a 3/8 inch drive ratchet handle and an extension.
b. Insert the extension through Special Tool 8807-1.
c. Place Special Tool 8807-2 on the end of the extension.





d. Insert lugs on Special Tool 8807-2 into notches in face of caliper piston.
e. Thread the screw drive on 8807-1 down until it contacts the top of 8807-2 which is against the caliper piston. Do not over tighten the screw drive. Damage to the piston can occur.
f. Turn 8807-2 with the ratchet, rotating the piston in a clockwise direction until fully seated (bottomed) in the bore. It may be necessary to turn 8807-1 with 8807-2 to start the process of piston retraction.





g. Once seated, align the notches in the piston with the boss on the caliper as shown. This is necessary to allow proper mating of the piston to the inboard brake shoe once installed (a lug on the rear of the shoe fits into the notch).
h. Remove the tools.

NOTE: The rear disc brake shoes are interchangeable. If new brake shoe assemblies are installed, either shoe assembly can be used on the inboard or outboard position on the brake rotor. If the original brake shoe assemblies are being installed, they should be reinstalled in the original position.

2. Install brake shoes into the caliper adapter as shown.
3. Install brake caliper over the brake shoes aligning the lug on the inboard shoe with the properly aligned notch in the piston. Use care not to damage guide pin boots as the caliper is placed over the guide pins.
4. Install the two guide pin bolts. Tighten the bolts to 33 Nm (24 ft. lbs.) torque.
5. Repeat the above procedure to the opposite side of the vehicle.
6. Install the wheel and tire assemblies. Tighten the wheel mounting stud nuts in proper sequence until all nuts are torqued to half specification. Then repeat the tightening sequence to the full specified torque of 122 Nm (90 ft. lbs.).
7. Lower vehicle.
8. Apply the brakes several times to seat the brake shoes and equalize parking brake adjustment.

NOTE: Before vehicle is moved after any brake service work, be sure to obtain a firm brake pedal.

9. Check and adjust brake fluid level as necessary.
10. Road test the vehicle and make several stops to wear off any foreign material on the brakes and to seat the brake shoe linings. New brake shoes need to be properly burnished. To do so, refer to Brake Shoe Burnishing.