Installation Procedure

Apply a light coat of high temperature silicone brake lubricant to the brake caliper guide pins and guide pin bores.
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Rear Brake Caliper Guide Pin Seal (2) - Install [2x]
Ensure the rear brake caliper guide pin seals are fully seated in the groove of the rear brake caliper housing.
Rear Brake Caliper Guide Pin Boot (1) - Install [2x]
Ensure the rear brake caliper guide pin boots are fully seated in the groove of the rear brake caliper housing.
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Rear Brake Caliper (1) @ Rear Brake Caliper Guide Pin - Install

Ensure the rear brake caliper guide pin seals are fully seated in the groove of the rear brake caliper bracket.
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Rear Disc Brake Pad Retainer Spring (1) - Install [4x]
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Rear Disc Brake Inner Pad (1) - Install
Rear Disc Brake Outer Pad (2) - Install
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Install to rear brake caliper and rear brake caliper bracket as an assembly (1) to the rear axle.
Prepare the rear brake caliper bracket bolts and the rear axle threaded holes for assembly.
1. Clean the rear brake caliper bracket bolts of any threadlocking residue.
2. Clean the rear axle threaded holes of any threadlocking residue with denatured alcohol and allow to dry.
Apply threadlocker to 2/3 of the threaded length of the brake caliper bracket bolt. Adhesives, Fluids, Lubricants, and Sealers
Allow the threadlocker to cure approximately 10 minutes before assembly.
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CAUTION:
Fastener Caution .

Rear Brake Caliper Bracket Bolt (1) - Install and tighten [2x] 300 N.m (221 lb ft)
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NOTE:
Install NEW brake hose fitting gaskets.

Brake Hose Fitting Gasket (2) @ Brake Hose Fitting (3) - Install NEW [2x]
Brake Hose Fitting Bolt (1) - Install and tighten - Rear Brake Hose Replacement
Bleed the brake system. Hydraulic Brake System Bleeding (Pressure) , or Hydraulic Brake System Bleeding (Manual)
Fill the brake master cylinder reservoir to the maximum-full level with GM approved brake fluid from a clean, sealed brake fluid container. Adhesives, Fluids, Lubricants, and Sealers
Install the rear tire and wheel assembly. Tire and Wheel Removal and Installation (Without Dual Rear Wheels) , or Tire and Wheel Removal and Installation (With Dual Rear Wheels)