Assembly Procedure

CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.

Clean all parts in denatured alcohol or brake fluid. Dry the parts with unlubricated compressed air and blow out all passages in the housing and the bleeder valve.
Inspect the piston and the caliper for scoring, nicks, and corrosion. Replace components if these elements are found.

Fig 1: Inspecting Pistons and Caliper
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Do not use a hone or any other procedure to remove material from the piston or the caliper bore.

Fig 2: View of Piston Inner Seal

Courtesy of GENERAL MOTORS CORP.

Lubricate a new piston inner seal.
Install the piston inner seal into the caliper housing groove. Make sure the seal is not twisted.
Install the outer piston dust seal in the groove.
Lubricate the piston with brake fluid.
Push the piston into its bore and make sure the dust seal is seated in the piston groove.

Fig 3: View of Pins and Rubber Boots

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Fig 4: Caliper Bleed Valve And Dust Cap

Courtesy of GENERAL MOTORS CORP.

Install the caliper bleeder valve and the dust cap.
Tighten: Tighten the caliper bleeder valve to 6 N.m (53 lb in).

IMPORTANT: Make sure the pad springs are properly installed.

Fig 5: Installing Caliper Assembly

Courtesy of GENERAL MOTORS CORP.

Connect the retaining frame to the caliper housing with the guide pin bolts.
Tighten: Tighten the retaining frame-to-caliper housing bolts to 27 N.m (20 lb ft).
Install the caliper assembly. Refer to Brake Caliper Replacement .