body swap
I have a 1980 D150 with a rotten cab.
I've been considering an earlier cab, like one from the 40's.
I saw a 47 at a show recently, and asked the owner if I could take some measurements.
I was shocked to find that the 47 frame is actually a couple inches wider than my 1980 frame.
The distance from the back of the cab to the front axle center line was identical.
Armed with that info, I think a Dak frame is going to be too small.