PowerStop has a reputation for precision and adherence to the strictest OEM standards, which extends to our brake shoe line. The PowerStop Autospecialty brake shoes are made with a semi-metallic formula that is post cured for increased braking power and a shorter break-in time. These shoes are precision cam ground for proper fitment to the drum and chamfered to prevent noise and chatter. All shoes are 100% asbestos-free, copper-free and made from new steel that is coated to resist rust.