Robert, Are you working on the pin with the trans axle/differential in the tractor? If you are I suggest that you remove the unit so that you can support the shaft solidly when you pound on it. If you don't,you risk making the frt seal leak or dislodging the trans frt brg snap ring (been there,done that). On my 126 (with creeper) not only was the snap ring dislodged but the frt brg was bad anyway.