This kit is exclusively for customers that have purchased our Heavy Duty Performance Spindles. Converting your front drum brakes to reliable and more powerful disc brakes just got easier with the introduction of this new premium conversion kit from Scott Drake. This complete bolt-on system includes everything needed to upgrade your mustangs' front brakes as well as front wheel bearings. There is no cutting, drilling or welding required. Each kit consists of all new components with premium features like zinc plated factory style 4 piston calipers loaded with stainless steel pistons, drilled and slotted rotors, a dual reservoir master cylinder, stainless steel brake lines, adjustable proportioning valve and all necessary mounting hardware. Get dependable performance and keep the factory look with a Scott Drake disc brake conversion kit. Note: Does not fit original spindles. NOTE: For 1967-69 cars Brass adapters may be required to connect hard brake lines to flexible brake hoses included. Minimum wheel size: 15" x 7".