Non-vintage style 11" disk brake kit featuring aluminum four piston calipers, slotted rotors, high performance pads, and stainless braided lines as well as the 1” dual master and adjustable proportioning valve. Fits manual brake applications only - Four Bolt 1964-69 Mustang Drum Brake Spindle or 1964-67 Mustang Disc Spindle. Cryogenic treatment of the rotors is an available upgrade for extra life.