Q: How to remove and install rear brake shoes on Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?
A: To remove and install rear brake shoes, first loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands. Release the parking brake and remove the wheel. If the brake drum has never been removed, remove the drum retainer clip. Wash the brake assembly with brake system cleaner and allow it to drip dry into a pan. Unhook the lower spring and remove it, then remove the upper spring from the adjuster lever. Remove the adjuster lever, star-wheel assembly, front brake shoe, and rear shoe retainer. Pry open the clip to disconnect the parking brake lever from the rear shoe. To install, lubricate the backing plate contact points and crimp the clip to attach the new rear shoe to the parking brake lever. Install the pin through the backing plate and the rear shoe, then install the spring and the retainer to the pin. Use a special tool to compress the spring and engage the retainer, and perform the same procedure on the front brake shoe. Clean and lubricate the star-wheel adjuster, then install the star-wheel assembly with the star to the front and the adjuster lever. Install the upper spring, hooking it into the adjuster, and the lower spring. Adjust the star wheel to give a very light drag when the brake drum is turned. Install the brake drum on the axle flange, pump the brake pedal, and turn the drum to listen for the sound of the shoes rubbing. If they are, turn the adjuster star wheel until the shoes stop rubbing. Install the wheel and lug nuts, lower the vehicle, and tighten the lug nuts to the torque specifications. Make a number of forward and reverse stops to seat the shoes to the drum and to actuate the auto-adjusting mechanism. Check the operation of the parking brake and adjust if necessary, and check the operation of the brakes carefully before driving the vehicle.