The disc pads and brake shoes work with your brake system to bring your Peterbilt 387 to either a complete stop or to enforce deceleration. The construction of these parts can include either ceramic or metallic disc pads. A metallic composition can include iron, steel, copper, and graphite combined for durability.
Heat transfer is an important consideration when it comes to your Peterbilt 387 brake system. High-quality pads and shoes will reduce the heat generated during the braking process. Squealing and grinding may indicate excessive wear on this system and should be replaced immediately. Failing to do so damages the rotors or drum.