I just looked it up. A two-ton will be 79-9/32 inches from outside wheel tread to outside wheel tread.

I didn't know about this resource until I joined Stovebolt, but it's great, check it out:

http://www.gmheritagecenter.com/gm-heritage-archive/docs/Chevrolet-Trucks/1946-Chevrolet-Truck.pdf



Jake