Used 1 1/2 inch pipe and slipe the axle in the tube so the birf is pointing up and put a rag at the bottom. "I was lazy and used a CherryBomb glass pack muffler todo this, hey it worked." If the pipe is long enough slam it on the ground if not hold it up and jerk it up and down and it will split. easy. just make sure you ahve something or someone to catch the axle :-p enjoy.
The fsm says to put it in a vise and bend the joint. using a brass drift on the birf hit at and split it.