I cleaned up your link a little so its easier to open.
https://lh3.googleusercontent.com/-WuskhXKdNWg/VMa20XCR4iI/AAAAAAAAAH4/zXtUyS0mn70/w1580-h889-no/15%2B-%2B
It looks like a very good. I have a 41 and a 46 GMC 300 which are about the same vehicle with a GMC motor. They will run 55 to 60 without over revving the engine. Putting 900x20 tires on the drive will help some. Depending on the the offset of your wheels. You don't want duals to touch each other. But as far as using it in a business, I wouldn't recommend it. My father still had gasoline tank wagons on trucks of that vintage in the 50's. There were a lot of little things to fix all the time. But in those days, you could go to any parts house and buy parts and every gas station had a mechanically inclined person around. There wasn't much traffic so stopping distance and steering wasn't that important. I have a dozen GMC's ranging from 1941 to 1957. I consider them all toys now. I have Internationals with Cummins in my semis, and I pull more with my 2500HD GMC and a trailer than we ever dreamed of hauling 60 years ago with a ton and a half. And I've got good AC, good brakes and I can go 80 where IH10 has an 80 MPH speed limit around here.
This isn't part of my business, its part of my addiction to play toys, but except for having to jerry rig the lights on this trip, I went through Houston and Austin traffic like there there was nothing on the trailer.
https://plus.google.com/photos/1081...3665610642&oid=108197707187186692269I put 7,000 axles under the trailer and have ST235/85R16 tires on it. I have 3 trailers with 2 7k axles. Up until a few years ago I had an Isuzu NPR, but I got rid of it in favor of a pickup and trailer. I have been trading pickups every 3 years and the difference is a lot less than what it would cost to maintain an old vehicle. What the 2500Hd will haul more than a an almost 70 year old vehicle would ever haul. If you need something heavier than that, consider a one ton.
