Now would be a good time to buy yourself an Ingersoll-Rand 2135. In you shop around on the internet, they can be bought new for a little under $250. But make sure you buy a new one. Once you use it, You won't care if your old CP stays broken. We used to fix impacts, but since IR came out with their titanium impacts. We throw broken ones impacts away. As for the nut on a Fuller output shaft, we use heat. It is a one time use self locking nut that needs to be thrown away anyway. If the transmission has a lot of salted roads, the rear yoke can even get stuck. I am gathering together all of my old surplus transmissions to take to an auction in Dallas. We are removing all the old yokes because core buyers assume the yoke to be stuck if it is present, and a stuck yoke makes the whole back section of the transmission scrap iron.