Thanks guys!
well, I managed to find a u-haul that will rent a trailer to me, the guy says the trailer will work. as I mentioned earlier, the u-haul will carry a truck with a wheel base up to 133 inches. can anyone confirm for sure that the '48 3600 thriftmaster is 125 1/2 inches? or even point me in the right direction.
I'm hauling it from Pittsburgh PA to Guelph Ontario (about 340 miles).
I don't think the tires on the truck could take being dragged, but I have not seen the truck myself.