Q: How to Maintain and Fix a Parking Brake Shoe on 2005 Jeep Grand Cherokee?
A: Before working on the parking brake shoe, lift the vehicle, take off the rear wheel and tire. After that, take out the 2 bolts that secure the caliper and lift the caliper away, making sure it does not hang only from the brake hose. Remove the rubber access plug that is found on the back of the rear disc brake support plate. If desired, use a brake adjuster tool on the star wheel's top, rotate it and bring the parking brake shoes inward. First, take off the rotor from the hub flange, then unscrew the four nuts that hold the axle flange and finally break the axle shaft from the rear differential. Grab the shoe to shoe return spring with your needle nose pliers and pull to remove, followed by extracting the adjuster. With brake pliers, take out the return spring from the second shoe and then remove each clip and pin, pushing the clip ends to get them clear from the pin. Take the actuator lever by the handle and then lift the shoe; repeat for the other shoe. Rinse everything brake-related with a damp cotton cloth or brake cleaner, keeping other cleaning products away and use fine sandpaper to remove minor rust and scale from the brake shoe contacts. Watch for wear on the riveted brake shoes, changing them if they are no more than 0.78 mm from the heads and measure the bonded lining to see if it is 1.6 mm thick. Carefully observe the contact pattern of the lining, looking for bends or tapers and inspect the adjuster assembly for signs of damage or rust. Throw out any brake springs or retainer parts that look worn and change the support plate if the pads on the brake shoes are worn or damaged with rust. To install the shoes, first secure them to the actuator lever and then install the shoes on the support plate using hold down clips and pins, guaranteeing they work correctly with the actuator lever. Put the return spring in place and grease the adjuster screw assembly so that its notched end lines up with the shoes and the star wheel fits into the access slot. Join the shoe to the shoe adjuster spring using needle nose pliers and fit the axle shaft to the back of the differential, tightening the nuts at the axle flange. Attach the rotor to the hub, then the caliper onto the rotor, securing them both to the 2 mounting bolts, tilling them to a torque of 90 - 115 Nm. Tighten the parking brake shoes, put on the tire and wheel assembly, drop the vehicle and ensure the parking brake is working properly.