Bringing economy to performance, this brake kit offers drilled and slotted rotors for a $25 upgrade over our standard kits. Front disc brakes provide a significant improvement in braking performance versus the drum brakes your car came with. This complete front disc brake conversion kit fits 1964-72 GM A-Body, 1967-69 GM F-Body and 1968-74 X-Bodyusing your stock disc brake spindles or our new replacement stock height disc brake spindles #910-34900. Kit includes 11 inch diameter vented brake rotor with 5 on 4-3/4 inch wheel bolt pattern, '69-'77 GM style calipers (7/16 inch-20 inlets), caliper brackets, brake pads, backing plates, rubber brake lines, and all necessary bearings, seals and hardware for an easy, complete installation onto factory disc brake spindles.Note: Brake kit will not fit our 2 inch dropped spindles # 910-34906 (Camaro with integrated caliper brackets) or stock drum brake spindles. Must be used with stock style disc brake spindles and 15 inch diameter or larger wheels.