Rear Brake Rotor Replacement

Rear Brake Rotor Replacement

Tools Required

* J 2619-01 Slide Hammer with Adapter
* J 41013 Rotor Resurfacing Kit
* J 42450-A Wheel Hub Resurfacing Kit
* J-46277 Rotor Removal Tool

Caution: Refer to Brake Dust Caution.

Removal Procedure

1. Check to be sure that the park brake is released.
2. Raise and support the vehicle.
3. Remove the tire and wheel assembly.




4. Disconnect the park brake cable from the park brake apply lever.




5. Install a C-clamp over the body of the brake caliper, with the C-clamp ends against the rear of the caliper body and the outboard disc brake pad.
6. Using the C-clamp, compress the piston into the caliper bore just enough to allow the caliper to slide away from the rotor.
7. Remove the C-clamp.

Notice: Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

8. Remove the caliper bracket bolts. Do not disconnect the brake flexible hose bolt.
9. Remove the brake caliper and the caliper mounting bracket as an assembly from the suspension knuckle and support the assembly with heavy mechanic's wire, or equivalent. Ensure that there is no tension on the hydraulic brake flexible hose.
10. Matchmark the position of the brake rotor to the wheel studs.
11. Remove the brake rotor. Do not force the rotor off. If the rotor is difficult to remove, ease it off by gently rotating it as you pull outward.





Important: The following service procedure is to be used only if the rear brake rotors cannot be removed without using force.

12. If the rear brake cannot be removed, perform the following:
1. Assemble J-46277 to J 2619-01.
2. Insert J-46277 between the rotor friction surfaces in the vent section of the rotor. DO NOT place the J-46277 on the rotor friction surface.
3. Using the J-46277 and J 2619-01, remove the rotor from the hub assembly.
4. Inspect the park brake components for the following conditions:
* Bent or broken hold down spring
* Broken, cracked or worn brake shoe lining
* Bent or damaged brake shoe
* Worn, bent or damaged backing plate
5. Replace any defective parts found.

Installation Procedure

Important: Whenever the brake rotor has been separated from the hub/axle flange, any rust or contaminants should be cleaned from the hub/axle flange and the brake rotor mating surfaces. Failure to do this may result in excessive assembled lateral runout (LRO) of the brake rotor, which could lead to brake pulsation.

1. Using the J 42450-A, thoroughly clean any rust or corrosion from the mating surface of the hub/axle flange.
2. Using the J 41013, thoroughly clean any rust or corrosion from the mating surface and mounting surface of the brake rotor.
3. Inspect the mating surfaces of the hub/axle flange and the rotor to ensure that there are no foreign particles or debris remaining.




4. Connect the park brake cable to the park brake lever.
5. Adjust the clearance of the park brake shoe to the drum-in-hat portion of the brake rotor.




6. Install the brake rotor to the hub/axle flange. Use the matchmark made prior to removal for proper orientation to the flange.
7. If the brake rotor was removed and installed as part of a brake system repair, measure the assembled lateral runout (LRO) of the brake rotor to ensure optimum performance of the disc brakes.
8. If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to within specifications.
9. Install the brake caliper and the brake caliper bracket as an assembly to the suspension knuckle.
10. Install the tire and wheel assembly.
11. Lower the vehicle.
12. If the brake rotor was refinished or replaced, or if new brake pads were installed, burnish the pads and rotors.