How do you change rear brake rotors on a 2006 gmc 3500 dually?

To change the rear brake rotors on a 2006 GMC 3500 dually, start by safely lifting the vehicle and removing the rear wheels. Disconnect the caliper by unbolting it and suspend it without straining the brake line. Remove the old rotor by unscrewing any retaining screws and sliding it off the hub. Install the new rotor, reattach the caliper, and ensure everything is secure before replacing the wheels and lowering the vehicle.