Replacing the Rear Wheel Bearing on 2003 Grand Prix

We are in need of changing the rear bearing on our 2003 Pontiac Grand Prix. All the information we have sourced only gives instructions on the Front wheel bearing. The Rear wheel bearing must be different due the brakes. Please assist in advising the tools, parts and how to replace the rear wheel bearing for a 2003 Grand Prix. What needs to be done with the rear brakes and pads if any. Thanks very much!