Caution: Avoid taking the following actions when you service wheel brake parts:

Caution: Brake fluid may irritate eyes and skin. In case of contact, take the following actions:

Notice: Brake fluid will damage electrical connections and painted surfaces. Use shop cloths, suitable containers, and fender covers to prevent brake fluid from contacting these areas. Always re-seal and wipe off brake fluid containers to prevent spills.

1. Use a siphon in order to remove half of the brake fluid from the master cylinder reservoir.
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the tire and wheel assembly from the vehicle. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.



4. Install a large C-clamp over the brake caliper.

Position 1 end of the clamp against the caliper body adjacent to the brake hose fitting.

Position the other end of the clamp against the outer pad.

5. Tighten the clamp in order to compress the caliper piston into the caliper bore.
6. Remove the clamp.



7. Use a wrench in order to prevent the lower guide pin (10) from turning.
8. Remove and discard the lower guide pin bolt (7).

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.

Important: Do NOT disconnect the hydraulic brake flexible hose from the caliper.

9. Rotate the caliper assembly up and support the caliper with heavy mechanic's wire, or equivalent. Verify there is no tension on the brake hose.
10. Remove the 2 brake pads (13,14).

1. Inspect the brake pads for wear. If the pad thickness is less than the specification, replace the brake pads in axle sets. Refer to Brake Pad Inspection .
2. Inspect the disc brake hardware. Replace the components if necessary. Refer to Rear Disc Brake Mounting and Hardware Inspection .
3. Inspect the caliper. Repair or replace the components as necessary. Refer to Brake Caliper Inspection .

Important: Refinish or replace the rotor ONLY if the condition of the rotor requires service. DO NOT refinish the rotor if the brake pads are the only components requiring service.

4. Measure the brake rotor thickness. Refinish or replace the rotor as necessary. Refer to Brake Rotor Thickness Measurement .
5. Measure the brake rotor thickness variation. Refinish or replace the rotor as necessary. Refer to Brake Rotor Thickness Variation Measurement .
6. Inspect the surface of the brake rotor. Refinish or replace the rotor as necessary. Refer to Brake Rotor Surface and Wear Inspection .
7. Measure the brake rotor assembled lateral runout. Refinish or replace the rotor as necessary. Refer to Brake Rotor Assembled Lateral Runout Measurement .

1. Clean the surface of the piston which contacts the inner brake pad.
2. Clean the surface of the caliper which contacts the outer brake pad.
3. If the caliper piston is not compressed into the caliper bore, complete the following steps:




3.1.	Place an old brake pad (2) or a block of wood against the caliper piston.

3.2.	Install a large C-clamp over the body of the brake caliper.

Position 1 end of the clamp against the caliper body adjacent to the brake hose fitting.

Position the other end of the clamp against the old brake pad or the wood.

3.3.	Tighten the clamp in order to compress the caliper piston into the caliper bore.

3.4.	Remove the clamp and the old brake pad or the wood.




4. Identify the outer brake pad (14). The outer brake pad has a full shim on the backing plate.
5. Install the outer brake pad.
6. Identify the inner brake pad (13). The inner brake pad has a shim with an asymmetrical cut-out.

Important: The cut-out must be on the lower half of the inner brake pad with the pad installed on the vehicle.

7. Install the inner brake pad.
8. Rotate the caliper down over the brake rotor.
9. Verify the spring clip is located correctly in the top of the caliper body.

Important: Do not wedge anything between the hex of the guide pin and the body of the caliper. The position of the guide pin affects the sliding of the caliper relative to the bracket.

10. Use a wrench in order to prevent the guide pin (10) from rotating.

Notice: Refer to Fastener Notice in the Preface section.

11. Install 1 NEW guide pin bolt (7).

Tighten
Tighten the bolt to 32 N·m (24 lb ft).

12. Install the tire and wheel assembly to the vehicle. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
13. Lower the vehicle.
14. With the engine OFF, gradually apply and release the brake pedal several times in order to position the caliper piston.
15. Apply pressure to the brake pedal for at least 5 seconds in order to position the brake pads.
16. Fill the master cylinder fluid reservoir. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
17. Burnish the pads and the rotors. Refer to Brake Pad and Rotor Burnishing .