It's a 1.5 or 2 ton if it has 5 lug fronts and 10 lug wheels.

It's probably a 2 ton and not a 1.5 ton if the front hub caps are held on with a few screws, and not just a pressed on cap.

Also what does the tag in the door say it is?

You can quickly tell if it's a 48-53 or a 54-5 by the grill and windshield, 54-5 has single piece of glass for windshield.

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-