GM 10434251
Caliper, Passenger Side

To work on front Brake Calipers you need a dust boot seal installer (part J 36349). First examine how much brake fluid is in the master cylinder reservoir and drain extra to reach the middle level between acceptable marks. Keep your fingers behind the piston when you apply compressed air because they could unleash at high speed during piston removal from the caliper. Compressed air helps push the Brake Caliper Piston through the piston boot without cleaning materials. When you spot damage on the piston during examination you need to replace it immediately. Look for damage on the caliper bore and seal grooves using a small plastic or wooden tool to remove the piston seal. You should polish away minor caliper corrosion using crocus cloth but need a new brake caliper to fix severe rust damage. Check brake caliper bolt boots and bolts for damages then replace them but steer clear from polishing off corrosion. Spray denatured alcohol on all caliper parts then dry them through air filter and non-lubricated compressed air. Mount the bleeder valve then cap and put on new lubricated piston seal and boot at the caliper brake piston. Slip engine oil on the piston then place it in the caliper hole while using the boot tool to line up the dust shield (J 36349). Next add the caliper in place.

Remove the brake hose bolt and the brake hose from the brake caliper, discarding the two copper brake hose gaskets that may be stuck to the caliper or hose end.

Remove the two caliper bracket bolts and the caliper bracket.

Install NEW copper brake hose gaskets with the brake hose bolt and the hose.

Use low pressure compressed air to extract the brake caliper piston from the caliper bore through the fluid inlet hole.

Remove the brake hose bolt and the brake hose from the brake caliper, discarding the two copper brake hose gaskets.

Inspect the caliper bracket bolt boot for cuts, tears, or deterioration, replacing any damaged boots.