towing enclosed trlr with motorhome??

[GTO/GN]

A friend of mine borrowed a motorhome that had a Ford E-350 van nose and a 25 foot living quarters. He hooked his 20 ft enclosed trailer on the back of it with his Grand National ,some tools and a bar b q in it, and after a 500 mile tow the hitch was bent down far enough for the bottom of the hitch to be about 1 inch off the ground... He had to park it at the motel he ended up at and I had to go get his trailer and bring it back with my dually. I don't know what you have to do to the back of that motorhome but make darn sure you have it done and done right...