Best I can tell they are both 2 tons.
The short one has the 2 ton front axle for sure with the little bolted on hub grease cap. The longer one also looks like it has the 2 ton axle.
However the heavy axle was an option on the 1.5 ton trucks, so the door tag might be the only way to know for sure.
1.5 ton will be about 14,000 lb, and 2 ton will say about 16,000 lb.
Not sure it matters much either way though, pick a truck you like and go for it... I don't believe you've said if or why a 1.5 or a 2 ton is better for your needs than the other? Or better than a 1 ton or even a smaller truck?
