Dan
This was my cure for a worn out coupling on my 149. Part of a 2000 series shaft. It bolts to the engine so it makes servicing the drive shaft a breeze. The 2000 shaft has a 5/8" ID so all you need to do is to cut a couple inches off the engine end of your shaft then slip the 2000 part over it, mark it where you want it then drill it and put a spirol pin it and your done.