Absolutely correct. It’s simple really. One is built for the job, the other isn’t. But it’s amazing how many people fail to realize it. Every camping season I see combinations around the campground and on the road that make you go hmmm. Last year we were up in Clayton GA at the Wal-Mart and a 40-42ft triple axle DRV pulled in on a F-250 and I promise you the rear tires weren’t clearing the fender wells by 1-1.5in tops. And out pops a couple with 3 kids. I just couldn’t bring myself to ask how the combo handled for fear of what he may say as well as try to mind my business. I just hope they are safe today.
He said going up the Saluda grade on I-26 in South Carolina, his rig would slow down to 20 mph.
He didn't have any trouble between Augusta and the coast. He said he needed a 550 like a 7.3, auto, 2x4, C/C Lariat F550 Fontaine Classic Traveler.
I would say that maybe for some people a 3/4 ton isn't even big enough.