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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1330 (Disc Brake System) >> Repair Instructions >> Front Disc Brake Pads Replacement (JH6, JH7)

Front Disc Brake Pads Replacement (JH6, JH7)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Front Disc Brake Pads (JH6, JH7)
GM1838048Courtesy of GENERAL MOTORS CORP.
Callout Component Name
WARNING: Refer to Brake Dust Warning .
CAUTION: 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.

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
CAUTION: Refer to Fastener Caution .

Tighten:  108 N.m (80 lb ft)

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.
  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. After the installation is complete and with the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
  4. Slowly release the brake pedal.
  5. Wait 15 seconds, then repeat steps 3-4 until a firm brake pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
  6. Fill the master cylinder to the proper level. Refer to Master Cylinder Reservoir Filling (Non-Hybrid) or Master Cylinder Reservoir Filling (Two-mode Hybrid) .
  7. Burnish the brake pads and rotors. Refer to Brake Pad and Rotor Burnishing .