Buick 19213926 Front Brake Rotor Assembly

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Loosen the wheel lug nuts, raise the front of the vehicle and support it securely on jackstands. Apply the parking brake and block the rear wheels to keep the vehicle from rolling off the jackstands. Remove the wheel and install two lug nuts to hold the brake disc in place. Remove the brake caliper, suspending it out of the way with a piece of wire. Visually inspect the brake disc surface for score marks and other damage. Deep score marks require brake disc removal and refinishing. Check brake disc runout with a dial indicator, ensuring it does not exceed the specified limit. Refinish the brake discs to impart a smooth finish and ensure flat brake pad surfaces. Never machine the brake disc to a thickness less than the specified minimum allowable refinish thickness. Remove the lug nuts holding the brake disc in place and remove the brake disc from the hub. Place the brake disc in position over the threaded studs. Install the caliper and brake pad assembly over the brake disc and tighten the caliper bolts to the specified torque. Install the wheel, lower the vehicle, and depress the brake pedal to bring the brake pads into contact with the brake disc. Check the operation of the brakes before driving the vehicle.