I took my 26 ft 5th wheel out west with a V6 powered tv. The highest passes were over 8,000 ft. Most of the time I just set the cruise control and let it roll. On the steep downhills I'd manually shift down and still use the cruise control so I needed very little brakes.
Now that I'm towing mostly Ohio the last two years I decided it could do more. 118,000miles and so far, so good.
Yes, I've been told by the experts it can't be done but the only crash burn I saw was two trucks at a filling station. One with a crash burnt full size Chevy and the other with the crash burnt trailer.
