How do you change rear disc on a 2004 GMC Denali?

To change the rear disc on a 2004 GMC Denali, start by safely lifting the vehicle and removing the rear wheel. Next, remove the caliper bolts and slide the caliper off the rotor, then secure it to avoid straining the brake line. Take off the old rotor by removing any retaining screws or clips, and install the new rotor. Finally, reinstall the caliper and wheel, ensuring all components are tightened to manufacturer specifications before lowering the vehicle.