I can't help with your specific question, but here is a good read for you.
https://www.jalopyjournal.com/forum/threads/1948-diamond-t-pickup-tow-truck-project-journal.540260/


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“He, who is without oil, shall throw the first rod” Compressions 8.7:1
Steve Peterson
Central Wisconsin

Follow The Leaders For They Know The Way AUTOCAR

I have a 1948 diamond t 210 body, i do not know the wheelbase, and i would like to swap the frame with a k5 blazer 4x4 frame. do any of y'all know how the frame/body combo would match up, what problems i would have, and how i could fix them. i am using a v8 350 sbc and turbo 400 trans if that helps