Turns out the P-30 stuff doesn't really fit (overall axle width) for the 8 lug single wheels trucks. Didn't know that from the start.

This thread did result in a good solution for the 2 ton with 5/10 lugs.



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-