New Andersen WD hitch

Campin LI, it is distributing weight when the chain is tightened. However, the "lever" is the rather short ball mount. Granted, the system cannot travel much past perpendicular (the rectangle you refer to), but that is because the lever is too short to move it much farther against the opposing leverage of the truck's wheelbase. Did you see BenK's drawing on page 2? I found it helpful for seeing the forces involved. If the truck wheelbase were only, say, 2 feet, one can see how the ball mount could be pushed way past perpendicular given enough chain take-up.