Grand Prix V8-5.3L (2007)
5. Inspect the caliper piston for cracks, scoring, damage to the chrome plating, and/or damage to the integral adjusting mechanism. Replace the
caliper piston if any of these conditions exist.
6. Inspect the caliper mounting holes for cracks, scoring, pitting, rust, and/or excessive corrosion. Replace the caliper assembly if any of these
conditions exist.
7. Lubricate the new piston seal with Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667) or equivalent DOT-3 brake fluid from a
clean, sealed brake fluid container.
8. Install the lubricated, new piston seal into the caliper bore.
9. Install the new dust boot seal onto the caliper piston (2).
10. Insert the caliper piston into the caliper bore; using a spanner type wrench, rotate the piston (2) clockwise to fully seat the piston into the caliper
body (1).
