OEM GMC Envoy Parking Brake Shoe

GMC Envoy Parking Brake Shoe Parts and Q&A

• Parking Brake Shoes
  88935747
  Q: How to Properly Service a Parking Brake Shoe on GMC Envoy?

  A:

  The process of replacing the park Brake Shoe begins by releasing the brake then lifting the vehicle. Switch off the park brake while raising the vehicle for work on the brakes. Remove the tire and wheel first. Then detach the brake caliper along with bracket but keep them together. Support and position them to one side. The first step involves rotor removal together with disconnection of the park brake cable from the park brake lever. The park Brake Shoe requires you to move it downward until it breaks free from the hold down spring before elevating and removing it away from the back plate to slide off from the actuation mechanism. Clean park brake components at the axle flange with a clean towel after pulling out the shoe over the flange. Set the adjustment screw at full home position within the notched adjustment nut before rotating it 1/4 turn. Ensure that both the screw slot and tappet slot remain aligned with the backing plate surface. Detergent alcohol cleans the rear backing plate before its drying happens through ungreased filtered air supply. The installation of new park brake shoes begins with placing one over the axle flange followed by positioning it onto the actuation mechanism. Pass the lower shoe end past the hold down spring towards the backing plate before resting it at the backing plate position. Push the shoe by its upper section beneath the hold down spring and confirm the shoe sits in the central position on the backing plate between the actuation mechanism slots. Operation of the park brake system must be tested by hand through observation of the actuation mechanism after moving the actuator lever. Restore the park brake cable to its connection point on the park brake lever while modifying the park Brake Shoe position. After that, add back the brake rotor followed by the brake caliper and mounting bracket. Lower the vehicle and then complete installation of the tire with its wheel.
• Repair Kit
  89027098
  Q: How to replace the rear disc parking brake shoe on GMC Envoy?

  A:

  The replacement process starts by releasing the park brake followed by vehicle elevation before performing the operation. Before replacing the wheel and tire proceed by moving the brake caliper with bracket to one side but maintain their connected state. The next step requires you to remove the brake rotor along with the removal of the park brake cable running into the park brake lever. The technician should lower the park Brake Shoe to disconnect it from the hold down spring before pulling it off the actuation mechanism and away from the backing plate. Brush away dirt and debris that accumulated on the park brake components using a clean piece of fabric before installing the shoe on the axle flange. Adjust the screw adjustment nut to its maximum position while keeping the screw alignment parallel to the backing plate face and then alter screw position by 1/4 turn. The rear backing plate requires cleaning with denatured alcohol before drying it through non-lubricated filtered air. Before assembly lay a new park Brake Shoe on the axle flange before adding it onto the actuation mechanism. When keeping the shoe lower end away from the backing plate you can slide it downward over the top of the hold down spring before setting the lower end against the backing plate. After placing the shoe between the actuation mechanism slots check it stands central on the backing plate while under the hold down spring . The actuation mechanism of the park brake should be reviewed manually by operating the park brake actuator lever then checking the mechanism function. The park brake cable installation to park brake lever should be followed by park Brake Shoe adjustment before installing brake rotor and brake caliper with mounting bracket. Complete the procedure by reinstalling the tire and wheel after lowering the vehicle.