Sierra 3500 Denali 4WD V8-6.0L (2011)
4. Using a small wooden or plastic tool, remove the brake caliper piston seal (1) from the brake caliper housing.
5. Remove the brake caliper bleeder valve cap (1) and bleeder valve (2).
6. Clean the brake caliper piston bore with denatured alcohol, or equivalent.
7. Inspect the caliper bore for cracks, scoring, pitting and excessive corrosion.
8. If light corrosion is present in the caliper bore, remove the corrosion with emery cloth, or equivalent.
9. If excessive corrosion exists that cannot be removed, replace the brake caliper.
Assembly Procedure
