by GregB » Fri Jul 07, 2006 9:51 am
Miriam,
If your van is 83" wide then you'll need 41.5" from the van body to the leading edge of the trailer to accomplish a full 90 degree jack-knife. I assume that your 44.5" measurement is to the middle of the ball. So, if you subtract the 12" that the body overhangs the frame in front you have only 32.5" left to the ball, right? depending on your hitch and receiver there can be often 6+" from the center of the ball to the tow vehicle body. You may then have about 38" of clearance. Others will correct me if I'm wrong, but moving forward should never be a problem, no matter how tight the corner. Backing up is where you'll have to be careful. In my experience, a full 90 degree jack-knife when backing up usually means that I've done something wrong before I got to that point. One other caveat, hook up the trailer to the tow vehicle and measure the leading edge of the trailer to its corresponding height on your van, you may, yet have clearance.
In any case, if I've done my right-angle geometry right, your van will strike the A arm section of your frame long before it will impact the body of the trailer. Which, I think, is what you were asking in the first place. (I'm long-winded, but eventually I get to the point)
GB
I'm not dead, yet. I'm feeling better.