Fenders on a 1 ton are the same as a 1/2 ton and a 3/4 ton.
1.5 and 2 ton fenders are larger, and the same.

17" tires are standard for an AD 1 ton single wheel truck.
18" wheels are normal for an AD dual wheel truck.

I have had 19.5" wheels and 8x19.5 tires on the front of my 1 ton, with the correct small front fenders. They just fit, and looked great in my opinion. They also rode much smoother than the 7.50x17 tires I had before.

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-