Well the thing is , everything is the same except the heater controls , and classic auto air tech will help u with the mod of the 73 unit. I have the guys extension that told me. Im just wondering if a 71-72 will work since i need a new control anyway. Why not buy one that i dont have to mod ? Know what i mean. I built this car for my wife and like yours she wants AC power steering and beakes etc . I put the box in today and its exactly like the directions said. I think the only dif is in the configuration of the blower switch.
