We purchased a motorhome last year. The hitch on it does not line up with our BP trailer so we purchased a height adjustable hitch to lower the hitch ball. That leveled the trailer but now, the hitch bottoms out going in and out of our driveway and other places. (We do not have a wheel on the jack.) I think it was a year or so ago that I saw an ad on HTW for a trailer attached to a motorhome. That trailer had some type of height adjustable coupler on it. It is the only one I ever remember seeing on a horse trailer. Unfortunately, I did not save that ad. Does anyone remember that trailer and the type of coupler it had? (We currently have a Featherlite 2H BP 8551 but plan on replacing it with a 4H BP.) Suggestions? Recommendations? THX!