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Home >> Chevrolet >> 2001 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes >> Repair Instructions >> Rear Brake Caliper Replacement (Exc. 35 Series) >> Installation Procedure

Installation Procedure

    IMPORTANT:

    Use denatured alcohol to clean the outside surface of caliper boot before installing new brake pads.

  1. If you are installing new brake pads, use a C-clamp in order to compress the piston to the bottom of the caliper bore. Use the old brake pad, a metal plate or a wooden block across the face of the piston in order to protect the piston and the caliper boot.
    2. Fig 1: Lifting Inner Edge Of Caliper Boots
    GM177028Courtesy of GENERAL MOTORS COMPANY
    IMPORTANT:

    Use a small flat-bladed tool and lift the inner edge caliper boot next to the piston to release any trapped air.

  2. Ensure that the piston boot is below the level of the piston face.
  3. Install the caliper.
  4. Perform the following procedure before installing the caliper guide pin bolts (15 Series pickups only).
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345493 or Red LOCTITE™ #272 to the threads of the bolt.
    5. Fig 2: Identifying Caliper & Backing Plate Bolts - Rear (15 Series)
    GM406126Courtesy of GENERAL MOTORS COMPANY
  5. Install, but do not tighten the caliper guide pin bolts (15 series pickups).
    6. Fig 3: Identifying Rear Caliper Mounting Bracket Bolts (25 Series)
    GM371261Courtesy of GENERAL MOTORS COMPANY
  6. Install, but do not tighten the caliper guide pin bolts (15/25 series utilities, 25/35 series pickup).
  7. Refer to FASTENER NOTICE in Cautions and Notices.

    Tighten the caliper guide pin bolts.

    Tighten 

    • Tighten the caliper guide pin bolts to 42 N.m (31 lb ft) (15 series).
    • Tighten the caliper guide pin bolts to 108 N.m (80 lb ft) (25 series).
  8. Remove the rubber cap or plug from the exposed brake hose fitting end.
    9. IMPORTANT:

    Install NEW copper brake hose gaskets.

  9. Assemble the NEW copper brake hose gaskets and the brake hose inlet fitting bolt to the brake hose.
    10. Fig 4: View Of Brake Hose To Caliper - Rear
    GM363420Courtesy of GENERAL MOTORS COMPANY
  10. Connect the brake hose at the caliper by installing the inlet fitting bolt.

    Tighten 

    Tighten the inlet fitting bolt to 45 N.m (33 lb ft).

  11. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Pressure) , Hydraulic Brake System Bleeding (Manual) in Antilock Brake System.
  12. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  13. Remove the safety stands.
  14. Lower the vehicle.
  15. Fill the master cylinder reservoir to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
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