A local stovebolter has a 2 ton NAPCO he refit under a 51 or 52 Chevy conventional truck.
The running gear came originally in a now mostly junk 1954 Chevy conventional 2 ton.
He also has all the literature and instructions for instillation, said it was only a few holes to drill for transfer case mounting and he was able to install the whole thing himself.

•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
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-