Removal & Installation
Dust and dirt accumulating on brake parts during normal use may contain asbestos fibers from production or aftermarket brake linings. Breathing excessive concentrations of asbestos fibers can cause serious bodily harm. Exercise care when servicing brake parts. Do not sand or grind brake lining unless equipment used is designed to contain the dust residue. Do not clean brake parts with compressed air or by dry brushing. Cleaning should be done by dampening the brake components with a fine mist of water, then wiping the brake components clean with a dampened cloth. Dispose of cloth and all residue containing asbestos fibers in an impermeable container with the appropriate label. Follow practices prescribed by the Occupational Safety and Health Administration (OSHA) and the Environmental Protection Agency (EPA) for the handling, processing, and disposing of dust or debris that may contain asbestos fibers.
- Before servicing the vehicle, refer to the Precautions Section.
- Raise and suitably support the vehicle.
Remove the tire and the wheel.
NOTEBrake fluid in the caliper is subject to contamination by heat. Do not force the contaminated fluid back through the brake system.
- Open the bleeder screw.
Attach a tube over the bleeder screw to catch the brake fluid in a container.
- Compress piston into caliper housing bore to provide clearance between linings and rotor.
Remove the caliper bracket bolts (1) and discard.
NOTEDO NOT twist or crimp the brake hose (2) and/or the brake pad wear sensor wire.
Remove the caliper and bracket together and secure with mechanic's wire.
- Remove the brake rotor set screw (1).
- Remove the brake rotor.
Whenever the rotor has been separated from the axle flange, clean any rust or foreign material from the mating surface of the axle flange and brake rotor. Failure to do this may result in increased lateral runout of the rotor and brake pulsation.
- Chase the caliper bracket mounting threads in the steering knuckle to remove any residual locking compound.
- Install the brake rotor.
Install the brake rotor set screw (1) and tighten to 35 inch lbs. (4 Nm).
Install the caliper and bracket to the steering knuckle.
- Coat the new caliper bracket bolts (1) with 272 Threadlocker, GM P/N 12345493 or equivalent.
- Install the new caliper bracket bolts (1) and tighten to 70 ft. lbs. (95 Nm) and then turn an additional 37 degrees.
- Install the tire and wheel.
- Lower the vehicle.
Fill the master cylinder reservoir.
NOTENew braking surfaces must be broken in or burnished after brake pads are installed and/or after rotors are refinished. Avoid overheating the brakes.
- Make 20 stops from 30 mph (48 km/h) using medium to firm brake pedal pressure to burnish the brake rotors.