CPP has a bunch of choices you can make, disc/disc(mine), disc/drum, and drum/drum. It has been two years since I bought so my memory is not clear but if you will call them they will explain what you need. When talking to them check on the need for a residual valve for the system that keeps fluid from flowing back to the MC.

http://www.classicperform.com/Store/1947_59_Trucks/4754BBD.htm


~Jim