Oh it is a 1 ton I would have guessed 1.5 for sure, still look like tubeless wheels to me. Are you sure about the tire size? The GVW and the Chevy 265 V8 due say 1 ton though if it where a 1.5 ton the stock wheels would be 22.5" and the tires should be 8.00 22.5s. The 8.00 22.5 would need to be changed to 9.00 22.5s as the 8.00 haven’t been made for many years. My father with 30+ years in the truck tire business says that the 8.00 22.5s that are on my 56 GMC are the only ones he has ever seen. Being a Canadian truck not sure if they used the Buick motor in the big trucks after 55 or not.
