Hey Terry, I removed the muffler and it is a 32. Thank you very much. So that is your mount? I thought that the sensor holder looked like something I have seen before on your web page. The back plate is plastic that someone cobbled off. I was able to remove the hub with no effort. The threaded stud looks to be pretty long, I hope that the prop hub is thick enough to allow it to be tightened well.

Tim