If I can, I'll snap some pics of that dually. Years ago I'd put together a 1972 crew cab dually and I loved it. I don't believe a dually was offered in '72 but I resurrected a '72 crew cab, added an '85 dually box and put a 1 ton suspension / dually rear under it. When I'd seen the movie "Heart Like a Wheel" I decided to clone it into a look alike of the red one Muldowney was using. It turned out really cool. - Sort of hard to parallel park it in my small town though.