I'm missing the tractor side of my PTO driveshaft for my sickle mower project. Does anybody sell just half of a PTO shaft? I need the tractor coupling, u-joint, and the 1" x 1 1/8" square male portion. I'd rather not have to buy a whole new shaft. I'm not sure if the mower stub shaft is even a common part. It's a 1 3/16" or 1 1/4" 19 spline with a through bolt. I can't seem to find a listing for that.