My Franken Super 2.0 had only the top half of the heater assembly. Really gonna need a heater this fall and winter. Had the entire heater assembly from my 76 Spider donor car lying around. So thought i would give it a try. To my surprise, it fit. Even bolts right up below the dash at the top. Using the original Super controls. All that is required is to shorten the cable to the control valve and fabricate a new long cable that controls the damper. Havent looked at hose routing, but that should be simple. Hope this helps others, as Spider heat assemblies are plentiful compared to the original metal boxes.