My 52 3800 pickup had 7.50X17 all four corners, drove it like that for a long time, no problems.

I later switched to 8X19.5, they just fit, not much extra room, but worked great, and gave a smoother ride.

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-