Step out of the same old disc brake box with our new bold Black Out series disc brake conversion.This 1964-72 Pontiac GTO, LeMans, Tempest OEspindle disc brake conversion kit is a must for your classic muscle car.These systems work with 15″ and aftermarketor ralley sport 14″ wheels. Tremendous performance improvements can be felt when updating your muscle carto front disc brakes. Our kits are assembled and prefitted.