57-69 Cadillac Front disc brake conversion kit. This is a direct bolt on to the stock OEM spindles. The kit uses 11 inch rotors and a large calipers for great stopping power. The beauty of this kit is you can replace the wear parts at your local parts store. When you receive your kit you'll also receive a parts list that will make maintenance easy for years to come. You must use 15 inch or larger disc brake wheels with this kit.