That rear bearing is whats giving you the grief, you can also try to get a screw driver in between the 2-shafts to get it started moving, once it starts it will come out pretty easy,we have also welded a ring on the back of the shaft to get a puller on.
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
http://www.affordabletractorsalesco.com