A-body Disc brakes

pops6t6 i am no expert here, but i think you can do that. the one problem to consider here is why a 72? the 72 is a small bolt pattern so you will be no better off with wheel choices. secondly the 72 is a 4 piston setup disc. this is fairly expensive to buy parts for and maintain. here is a link that you should check into before you do anything. it will explain everything you need to know and then some....good luck

http://cars.rasoenterprises.com/Mopar-Brakes.htm