Mike, I think I answered the wrong question. The tailwheel itself looks just like the one we've been talking about...a four inch wheel. See my link yesterday for Aircraft Products' email address. You'd need to know the axle diameter. They come in both 3/8" and 1/2", and perhaps others, although aluminum tubing could be used as a spacer.
Mark Langford ML at N56ML.com website at http://www.N56ML.com --------------------------------------------------------