Well, there you go. The frames are basically the same. Is the military frame you have a 4x4? They're the same as the '80s frames. I have a '76 frame I put an '84 cab on, with a '74 engine in it. It was 2x4, but I also have an old '74 Powerwagon, and it all measures the same. I used the 2x4 frame at the time for a road truck. I didn't need the 4x4. Now I wish I had, as my whole system is different, but I still may do it, as my powerwagon body is in good shape. The ramcharger frames are the same, as well. In the front end, anyway. Everything should bolt right up.