GMC 19167290 Pad Kit,Front Disc Brake

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Loosen the front wheel lug nuts, raise the front of the vehicle, and support it securely on jackstands. Apply the parking brake. Remove the wheels. Remove about two-thirds of the fluid from the master cylinder reservoir to make room for pushing the pistons back into the caliper during the pad replacement process.

On older models, remove the caliper mounting bolts and lift the caliper off the disc, removing the outer and inner pads. Remove the mounting bolt seals and rubber bushings from inside the caliper ears, clean and inspect the caliper and mounting bolts, and replace them if necessary. Install new rubber bushings and seals in the caliper, filling the space between the bushings with silicone grease. Apply anti-squeal compound to the backing plates of the new brake pads and position the inner and outer pads in the caliper. Hold the caliper in position over the disc, insert and tighten the mounting bolts.

Install the brake pads on the opposite wheel, then install the wheels and lower the vehicle. Add brake fluid to the reservoir until it's full. Pump the brakes several times to seat the pads against the disc, then check the fluid level again. Check the operation of the brakes before driving the vehicle in traffic. Try to avoid heavy brake applications until the brakes have been applied lightly several times to seat the pads.

Finally, tighten the mounting bolts and wheel lug nuts to the proper torque specifications, depress the brake pedal to bring the pads into contact with the disc, and check the brake fluid level and operation of the brakes before normal use.