A quick search turned up disk/disk masters for '73 Barracuda at Summit, and I'm sure a quick trip to Napa or AutoZone would turn up more. My point is.. you can use a disk/drum in this situation but when an engineered disk/disk version is available why jury rig the system. Makes no sense to me but then apparently, I'm no expert since you guys seem to think barbed wire and bubble gum is a better idea.