If dual wheel and you had 18" wheels you may not fit 16" wheels over the brake drums. Have to try and see


17.5" is also tubeless and desirable because of that but a little small I think.

In my opinion 19.5" wheels and 8R19.5 tires being 32-33" tall and still quite skinny just look appropriate on an old 1 ton.
Nothing wrong with the original wheels and tires but if you do want tubeless; 19.5" look "just right"... To me

Last edited by Grigg; 03/07/2015 5:23 AM.

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-