Wilwood's Classic Series front disc brake kits for Ford Trucks from 1948 to 1956, offer disc brake upgrade solutions for OEM Drum spindles. A completely new kit design, featuring a one piece 11.72 in x 1.19” rotor and hub assembly with a 5 x 5.50 in wheel bolt circle. Based on the venerable Forged Billet Superlite 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 in wheels. FSL4 1 piece kits can be used with either manual or power boost master cylinders. Kits come complete with calipers, rotors and hub assembly, brackets, hardware and line kit.