This disc brake conversion uses 11-3/4" x 1.25 thick rotors and Wilwoods big 6-piston Superlite Caliper. Mounts directly to Dodge, Chrysler, Plymouth B or E- body drum brake spindles and uses 11-3/4" diameter rotors. Includes bearings, seals, wheel studs, mounting brackets, rotor adapters, and hubs. Other options include 4-piston Superlite or four piston Narrow Mount Dynalite Calipers, light weight master cylinder, proprtioning valve, and residual valve.