My set up is a 23' with a 454. Its towing a 16' trailer and a 4 runner, I can't even feel it when rolling. I do recommend going tp Bellew's on M street in Tacoma. They ran supports all the way up to the "real frame" not just the back rails. Motor Homes are not really legal to tow a lot of weight. Thats why you see most people flat towing. The guys at Bellew's will take care of you for $750. that the hitch and brakes.:awesomework: