Chevrolet Silverado / GMC Sierra. Service manual — part 1510

Fig. 14: View Of Front Disc Brake Components
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

CAUTION:

Refer to Brake Dust Caution .

NOTE:

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.

2008 Chevrolet Silverado 1500

2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Preliminary Procedures

1. Inspect the fluid level in the brake master cylinder reservoir.

2. If the brake fluid level is midway between the maximum-full point and the minimum

allowable level, no brake fluid needs to be removed before proceeding.

3. If the brake fluid level is higher than midway between the maximum-full point and the

minimum allowable level, remove brake fluid to the midway point before proceeding.

4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and

Installation .

1

Brake Caliper Guide Pin Bolt

Procedure

1. DO NOT use any air tools to remove or install the brake caliper guide pin

bolts. Use hand tools ONLY.

2. Install an open end wrench to hold the caliper guide pin in line with the

brake caliper while removing or installing the caliper guide pin bolts. DO
NOT allow the open end wrench to contact the brake caliper. Allowing
the open end wrench to contact the brake caliper will cause a pulsation
when the brakes are applied.

3. Ensure the brake caliper guide pin seal is fully seated in the groove of the

brake caliper guide pin and the guide pin slides freely in caliper bracket
bore.

Tighten: 100 N.m (74 lb ft)

NOTE:

Refer to Fastener Notice .

2

Brake Caliper

Procedure

1. Install 2 large C-clamps over the top of the caliper housing and against the

back of the outboard brake pad.

2. Slowly and evenly tighten the C-clamps until the caliper pistons are

completely retracted into the brake caliper bores.

3. Remove the C-clamps.

2008 Chevrolet Silverado 1500

2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

REAR DISC BRAKE PADS REPLACEMENT (JH6, JH7)

4. Without disconnecting the brake hose, pivot the brake caliper upward.

5. Support the brake caliper with heavy mechanics wire or equivalent.

3

Disc Brake Pad (Qty: 2)
Tip: Note the location of the inner and outer brake pads to aid installation.

4

Brake Pad Shim (Qty: 2)

Procedure

1. Discard the brake pad shims.

2. Thoroughly clean the brake pad hardware mating surfaces of the caliper

bracket of any debris and corrosion.

3. Apply a very thin coating of high temperature silicone brake lubricant to

the pad hardware mating surfaces of the caliper bracket only.

4. After the installation is complete and with the engine OFF, gradually

apply the brake pedal to approximately 2/3 of its travel distance.

5. Slowly release the brake pedal.

6. Wait 15 seconds, then repeat steps 4-5 until a firm brake pedal is obtained.

This will properly seat the brake caliper pistons and brake pads.

7. Fill the master cylinder to the proper level. Refer to Master Cylinder

Reservoir Filling .

8. Burnish the brake pads and rotors. Refer to Brake Pad and Rotor

Burnishing.

2008 Chevrolet Silverado 1500

2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 15: View Of Rear Disc Brake Components
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures

1. Inspect the fluid level in the brake master cylinder reservoir.

2. If the brake fluid level is midway between the maximum-full point and the minimum

allowable level, no brake fluid needs to be removed before proceeding.

3. If the brake fluid level is higher than midway between the maximum-full point and the

minimum allowable level, remove brake fluid to the midway point before proceeding.

4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

CAUTION:

Refer to Brake Dust Caution .

NOTE:

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.

2008 Chevrolet Silverado 1500

2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado