To stop the front wheels from going crazy just hook a bungee cord to the bottom of your seat and run it through your steering wheel and back down to the seat. It will keep enough tension on the wheel to keep it from going crazy. Been doing it fot 20+ yrs. now, without a problem.

Here is a pic of mine. As it sits in the picture, the tow bar is 24" from the ground where it attaches to my Shrockworks bumper(bottom edge of bar to the ground). The ball coupler is sitting at 17 3/4" (measured from the bottom edge to the ground).

For an exact measurement of the drop I would call Trail Tough and ask. They have always been super helpful over the phone (even when not placing an order).

Thanks, a picture speaks a thousand..

And thanks to everyone else for bearing with me.  I have a very narrow window to get back to my Samurai, attach towbar, and get it across the northern country's wasteland in January hahaha.  So that said, I did not have any room for trial and error.  I hope this post may benefit any other novice zuk owner in the future.