This complete bolt-on system includes everything needed to convert the Mustangs with manual front drum brakes to factory-style 4 piston power disc brakes utilizing the original V8 drum brake spindles. There is no cutting, drilling or welding required. Each kit consists of all new components with premium features like zinc-plated calipers loaded with stainless steel pistons and an adjustable proportioning valve. A new brake booster, dual reservoir master cylinder, and pre-bent brake lines are also included. Get dependable performance and keep the factory look with a Scott Drake disc brake conversion kit. For 64-66 V8 Mustangs with Automatic Transmission only. Note Minimum wheel size: 14" x 7".