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Chevrolet Silverado / GMC Sierra. Manual - part 1523
FRONT BRAKE ROTOR REPLACEMENT (JH6, JH7)
Tip: Note the location of the inner and outer brake pads to aid installation.
4
Brake Pad Shim (Qty: 2)
Procedure
1. Thoroughly clean the brake pad hardware mating surfaces of the caliper
bracket of any debris and corrosion.
2. Apply a very thin coating of high temperature silicone brake lubricant to
the pad hardware mating surfaces of the caliper bracket only.
5
Brake Caliper Bracket Bolt (Qty: 2)
Procedure
1. Remove all traces of the adhesive patch on the brake caliper bracket bolts
and threaded holes of the brake caliper bracket.
2. Clean the brake caliper bracket bolt threads and the threaded holes of the
brake caliper bracket with denatured alcohol or equivalent and allow to
dry.
3. Apply threadlocker G/M P/N 12345493 (Canadian P/N 10953488) to 2/3
of the threaded portion of the brake caliper bolts.
Tighten: 200 N.m (148 lb ft)
6
Brake Caliper Bracket
2008 Chevrolet Silverado 1500
2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 45: View Of Front Brake Rotor Components
Courtesy of GENERAL MOTORS CORP.
Callout
Component Name
Preliminary Procedures
1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and
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.
NOTE:
Any new rotor must have the protective coating removed from the friction surfaces before being
placed in service. Remove the protective coating using denatured alcohol or an equivalent brake
cleaner, and wipe the surface clean with clean cloths. Do not use gasoline, kerosene, or other oil
base solvents which may leave an oily residue. This residue is damaging to the brake lining and is
flammable.
2008 Chevrolet Silverado 1500
2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Installation .
3. If equipped with RPO JH7, mark the relationship of the wheel hub extension to the
wheel studs.
4. If equipped with RPO JH7, remove the wheel hub extension nuts and the wheel hub
extension.
1
Brake Caliper Bracket Bolt (Qty: 2)
Procedure
1. Remove all traces of the adhesive patch on the brake caliper bracket bolts
and threaded holes of the brake caliper bracket.
2. Clean the brake caliper bracket bolt threads and the threaded holes of the
brake caliper bracket with denatured alcohol or equivalent and allow to
dry.
3. Apply threadlocker G/M P/N 12345493 (Canadian P/N 10953488) to 2/3
of the threaded portion of the brake caliper bolts.
Tighten: 300 N.m (221 lb ft)
NOTE:
Refer to Fastener Notice .
2
Brake Caliper and Bracket Assembly
Procedure:
Without disconnecting the brake hose from the brake caliper, remove the brake
caliper and bracket as an assembly and support with heavy mechanics wire or
equivalent.
3
Brake Rotor Retainer (Qty: 2)
Procedure
1. Discard the brake rotor retainers, if equipped.
2. If equipped with RPO JH7, align the wheel hub extension to the wheel
studs during assembly.
3. If equipped with RPO JH7, install the 8 wheel hub extension nuts.
Tighten: 130 N.m (96 lb ft)
Brake Rotor
2008 Chevrolet Silverado 1500
2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
FRONT BRAKE ROTOR REPLACEMENT (JD9, JF3, JF7)
4
Procedure
1. If reinstalling the original brake rotor, mark the position of the brake rotor
to the wheel stud.
2. Using the J 41013 , clean any rust or corrosion from the mating surface the
brake rotor. See Special Tools.
3. Using the J 42450-A , clean any rust or corrosion from the mating surface
of the hub/axle flange. See Special Tools.
4. After installing the brake rotor, measure the assembled lateral runout
(LRO). Refer to Brake Rotor Assembled Lateral Runout
Measurement.
5. If the brake rotor was refinished or replaced, burnish the brake pads and
rotors. Refer to Brake Pad and Rotor Burnishing.
Tools Required
J 41013 Rotor Resurfacing Kit. See Special Tools.
J 42450-A Wheel Hub Resurfacing Kit. See Special Tools.
2008 Chevrolet Silverado 1500
2008 BRAKES Disc Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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