Installation Procedure
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
- Use the J 42450-A to clean all rust and contaminants from the mating surface of the hub flange. See Special Tools .
- Use the J 41013 to clean all rust and contaminants from the inside diameter of the hat section of the brake rotor to prevent any foreign material from getting between the brake rotor and the hub flange. See Special Tools .
- Inspect the mating surfaces of the hub/axle flange and the rotor to ensure that there are no foreign particles or debris remaining.
- Align the rotor to its original position on the hub, if applicable, and install the rotor by slowly turning the rotor while pushing the rotor towards the axle.
- If the brake rotor was removed and installed as part of a brake system repair, measure the assembled lateral runout (LRO) of the brake rotor to ensure optimum performance of the disc brakes. Refer to Brake Rotor Assembled Lateral Runout Measurement .
- If the brake rotor assembled LRO measurement exceeds the specification, bring the LRO to within specifications. Refer to Brake Rotor Assembled Lateral Runout Correction .
- Install the caliper and the bracket as an assembly to the vehicle.
- Perform the following procedure before installing the caliper bracket mounting bolts.
- Remove all traces of the original adhesive patch.
- Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
- Apply Threadlocker GM P/N 12345493 (Canadian P/N 10953488) to the threads of the bolt.
- Install the caliper bracket mounting bolts.
Tighten: Tighten the brake caliper bracket mounting bolts to 300 N.m (221 lb ft).
- Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
- Lower the vehicle.
- With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
- Slowly release the brake pedal.
- Wait 15 seconds, then repeat steps 12-13 until a firm pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
- Fill the master cylinder reservoir to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling .
IMPORTANT:
Whenever the brake rotor has been separated from the hub/axle flange, any rust or contaminants should be cleaned from the hub/axle flange and the brake rotor mating surfaces. Failure to do this may result in excessive assembled lateral runout (LRO) of the brake rotor, which could lead to brake pulsation.
NOTE:
Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.