I used a Klett because I already had one. Just had to extend the plywood mount
about an inch forward. I prefer the Northern Model Products Tailwheel though
because it is simple to hook up and very durable. I changed the Klett unit to hook up
the same as the NMP with a short spring to the bottom of the rudder. This follows the
movement of the rudder for turning but lets the wheel be turned without moving the
rudder so it won't damage the rudder if it gets hit or turned sharply. They're both
around $20.00 - not cheap.

tommy s