Wilwood's Classic Series front disc brake kits for Buick vehicles 1957 to 1960 Cadillac, offer disc brake upgrade solutions for OEM Drum spindles. A completely new kit design, featuring a large 11.88" x 1.29" rotor and hub assembly. Based on the venerable forged billet Dynalite caliper, these versatile kits are easily optioned to suit the braking requirements and style preferences for a daily driver or the most discriminating show enthusiast. Intended vehicle applications require no modifications for installation, and provide plenty of clearance inside popular 15" wheels. FDL 1 piece kits can be used with either manual or power boost master cylinders. Kits are complete with calipers, rotors and, hub assembly brackets, hardware and brake line kit