C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
5. Ensure that the seal is not twisted.
6. Lubricate the brake caliper bore and the piston with brake fluid.
7. Install the boot and the piston.
7.1.
Install the boot over the end of the piston so that the fold will face toward the brake caliper housing piston bore opening.
7.2.
Seat the boot into the brake caliper bore groove. Slide the piston into the brake caliper bore.
7.3.
Push down the piston to the bottom of the brake caliper bore.
7.4.
Ensure that the boot properly seats into the piston groove and into the groove in the brake caliper bore.
7.5.
Repeat steps 5 and 6 for the remaining piston.
8. Install the brake caliper to the vehicle. Refer to Brake Caliper Replacement - Rear .