Yes, good point on the gears and which engine you have.

I drove my 1 ton with 4.56 gears and a 55 model 235 a lot. I felt it was geared just right for around town and practical use hauling firewood and whatever else you can pile in a 9' bed.
Though for longer trips I am pretty sure 4.11 would have been great, and I may have gotten by with 3.73 and my limited power.
But back at home and normal use I think 3.73 would have been to much gear for the little 235.

All that to say 4.11 or 4.10 is probably about perfect for these old trucks without changing much else.

Grigg

•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-