So I see people towing enclosed trailers all the time with class A RV's. My hitch on my RV is only rated at 5000lbs and 500 tongue weight, I can't imagine others are much higher so how do they do it? Should I change it, and if I should where do you get a hitch for something like this. I have called everywhere and noone wants to touch it

I looked into those load distribution things but they are not recomendedon RV's and I am not sure how well they would work with the long wheel base on a class A anyway.

Thoughts?
Stephen