See now. Steve, what you just said is absolutely relevant. Knowing that the bed height of an aluminum Superduty with single rear wheels is higher than that of a dually I can feel confident in assuming that if you can tow level on multiple trailers then there's a good chance I can tow level too with my lower hitch height dually. Considering the fact that I can purchase this hitch for $150bucks it seems like money well spent. If it doesn't work out for me then I feel confident that I can at least get my money back selling it.