Here's some info on the 14 bolt swap Ed mentioned, and gets to your question of what donors might be good.
https://www.stovebolt.com/ubbthread.../14-bolt-axle-swap-info.html#Post1249600


•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-