This period correct 11” disc brake kit features cast iron 4 piston calipers nearly identical to the originals used on 1965 Mustangs except they are fitted with lighter weight pistons made of stainless steel and have 1967 style 7/16” inlet ports. Rotors are one piece cast iron, straight vane ventilated, .8125” thick x 11.25” diameter, suitable for most vintage race applications requiring OE type brakes. This nonpower application kit includes everything pictured above with a 1” dual master cylinder, adjustable proportioning valve, OE type pads, and rubber flex lines. 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.