These 2 trucks are different models. The one with red wheels is a 3800 1-ton. Probably has 18" wheels, maybe 16". The GVW is less than 10,000. The 2-ton, probably a 6100 model (not C60) is 14,000 - 16,000, and has 20" wheels with a different bolt pattern. You should compare the information on the identification plates of each truck. And decide what you want/need the truck to do.