Replace GMC Cost Of Replacing Rear Brake Discs And Pads. Order GMC Rear Brake Discs And Pads Cost & GMC Rear Brake Rotors And Pads Price. Maintaining the rear brake rotors and pads of your GMC is crucial for ensuring safety and performance on the road. To extend their lifespan, it?s essential to regularly check for wear, listen for squealing noises, and feel for vibrations, which often indicate replacement is needed. When selecting new rear brake rotors and pads, consider the variety available, from cross-drilled for better heat dissipation to ceramic pads for quieter, less dusty operation. Always opt for high-quality materials to guarantee durability and peak functionality. For a seamless installation, clean the hub surface thoroughly and apply a thin layer of lubricant to the contact points to prevent sticking and noise.