F-Body Volare/Aspen disc brake swap onto 74 Dart Sport

Thanks for the insight guys. I've got a Duster parts car tracked down that is a 318 car, runs, not sure on driving but it does have disc brakes as well as the V8 K member, T bars, leaf springs and a few odds and ends I can rob from it for my car. My Dart sits a little too low in the rear too, does the V8 car have stiffer leaf springs?