GM 88965717
Backing Plate

Start brake plate replacement work by disabling the automatic adjuster for the park brake cable. Elevate the car then take off the tire and wheel unit. Push spring towards lever to compress it then depress the locking tabs to free the cable. Pull out housing from backing plate and extract cable through its slot. Begin by taking off the park brake cable from the lever then proceed to disconnect the rotor Axle Shaft park brake shoe and backing plate nuts. Afterward detach the backing plate from its location on the axle housing flange. Secure the backing plate to the axle housing flange then fasten backing plate nuts until they reach torque setting of 135 nm (100 ft. Lbs.). Put on the park brake shoe and Axle Shaft while adjusting the park brake shoe position. Add the rotor to the brakes after attaching the park brake cable to its lever. Push the spring towards the lever while sliding the cable through the backing plate slot. After that, push the cable housing into the backing plate until the locking tabs automatically snap in place. Replace the tire and wheel parts on the vehicle then take off safety stands to bring the vehicle down before enabling the auto-adjust feature of the park brake cable.

After freeing the park brake you need to lift the vehicle and place supports under it to proceed with the replacement. Take off the tire and wheel unit before easing the park brake cable tension by pulling down on the cable near the equalizer bar and then detaching it from the equalizer. Take off the park brake cable from its mounting bracket using the locking tabs and remove the rear brake cable end from the park brake actuator lever . First unfasten the rotor from the housing then lower the Axle Shaft before taking out the park brake shoe. Using a socket and wrench remove the backing plate bolts until you can take the backing plate away from the axle housing flange. Put the backing plate on the axle housing flange first then use the backing plate nuts to fasten it at 135 nm (100 ft. Lbs.). Install the park brake shoe first and then the Axle Shaft before adjusting the park brake shoe. Install the rotor while connecting the rear park brake cable end back to the park brake actuator lever and fasten the park brake cable to its mounting bracket through the locking tabs. Complete the installation by connecting the equalizer bar to the park brake cable then put back the tire and wheel unit. Take out the safety stands and lower the vehicle while setting the park brake properly.

Disable the park brake cable automatic adjuster and remove the park brake shoe.