Power Front Disc Brake Conversion Compatible with Mustang 1967-1970 4 lug disc brake conversion. This kit uses your original drum Brake spindles. We welcome any and all questions. This kit comes with drilled and slotted rotors. This is typically used on a 6 cylinder car retaining 4 lug Wheels This kit includes the following items Pair of drilled and slotted rotors 4 lug Pair of 4 piston calipers loaded with semi-metallic pads. (D11pads) Complete caliper bracket set with mounting hardware. Pair of rubber brake hoses Complete wheel bearing set and seals. 1- master cylinder 1- power brake booster 1 power brake pedal 1 brass proportioning valve block with mounting bracket This kit works with stock drum brake wheel. (Wheels must be at least 3.5 inch offset)