I can only relate actual experience.
I towed a 2006 Jeep Wrangler Rubicon Unlimited with a 1995 Tioga 460 V8 Class C. I never weighed the Jeep, so I have no idea what the actual weight was, but it had added skid plates, custom bumpers, a winch, rock sliders, a 30 gallon fuel tank, and added CB and Amateur radios, so it was heavier than a stock Jeep. I had a well qualified welder reinforce the hitch, and towed the Jeep over the Continental Divide (Marias Pass and Homestake Pass) several times.
Nothing bent, nothing broke, no accidents, incidents, or occurrences, and nobody died or was injured.
Now, I tow the truck in my sig. with the coach in my sig. Again, I have no idea what it weighs, and don't really care. I have gone over the same passes with it, with the same results.
It works, IMO that is what really matters.
Good luck.
