To replace the rear Brake Disc, collect the following tools: slide hammer with adapter (J 2619-01) and disc resurfacing kit (J 41013), wheel hub resurfacing kit (J 42450-A); disc removal tool (J-46277). Start by depowering the park brake and checking the
Brake Master Cylinder reservoir fluid level should be in the middle point between the most upper and most lower limits. Mark the disc's relationship to the hub, take off the tire and wheel assembly. Use a large c-clamp so you can compress the brake caliper pistons then remove the
Brake Caliper Bracket and the brake caliper and bracket as an assembly to support the caliper as part of the brake caliper without disconnecting the Hydraulic Hose. If it applies, remove Brake Disc retaining push nuts, and if it is required, apply a deadblow hammer to split the disc from the hub. In case the disc cannot be disassembled, assemble the disc removal tool (J-46277) and attach it to the slide hammer with adapter (J 2619-01) and push the tool between the disc friction surfaces to facilitate its removal. Examine the park brake parts for any damage, and replace damaged ones if necessary. Clean the hub/axle flange and Brake Disc mating surfaces with the aid of the wheel hub resurfacing kit (J 42450-A) and disc resurfacing kit (J 41013) to remove rust and contaminants. Line up and mount the disc and check the assembled lateral runout (LRO) for best brake performance. Forward any deviation in specifications of the lro to be corrected. Install the caliper and the caliper bracket, keeping in mind to clean the bolting threads and apply threadlocker gm p/n 12345493 (Canadian P/N 10953488) while tightening the caliper bracket bolts to 200 nm (148 ft. Lbs.). Finally, replace the tire and wheel assembly and pedal the brake pedal slowly to seat the caliper pistons and pads before topping off the master cylinder reservoir with clean brake fluid if needed.