Yukon XL 2500 2WD V8-8.1L VIN G (2004)
Notice: Refer to Fastener Notice in Service Precautions.
1. Install the brake caliper bleed screw.
Tighten the brake caliper bleed screw to 12 Nm (106 inch lbs.).
2. Install the brake caliper bleed screw cap.
3. Lubricate the new piston seals and the brake caliper bore seal grooves with brake fluid
4. Install new seals into the brake caliper bore seal grooves.
5. Ensure that the seals are not twisted.
6. Lubricate the brake caliper bores and the pistons with brake fluid.
7. Install the boot and 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 the boot seats properly into the piston groove and into the groove in the brake caliper bore.
7.5.
Repeat step 7 for the remaining piston.
8. Install the brake caliper to the vehicle. Refer to Brake Caliper Replacement - Front.
Brake Caliper Replacement - Rear
Brake Caliper Replacement - Rear (2500 Series)
Caution: Refer to Brake Dust in Service Precautions.
Caution: Refer to Brake Fluid Irritant in Service Precautions.
Removal Procedure
1. Inspect the fluid level in the brake master cylinder reservoir.
2. If the brake fluid level is midway between tile maximum full point and the minimum allowable level, no brake fluid needs to be removed from the
reservoir before proceeding.
3. If the brake fluid level is higher than midway between the maximum full point and the minimum allowable level, remove brake fluid to the midway
point before proceeding.
4. Raise and support the vehicle. Refer to Vehicle Lifting..
5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
6. Inspect the caliper operation. Refer to Brake Caliper Inspection.
7. Install a C-clamp over the body of the brake caliper, with the C-clamp ends against the rear of the caliper body and the outboard disc brake pad.
8. Slowly tighten the C-clamp until the pistons are pushed into the caliper bores enough to remove the caliper from the pads.
9. Remove the C-clamp from the caliper.
10. Clean all dirt arid foreign material from the brake hose end.
