D5 Dead Axle Removal

I've got an old D5 96J dozer the final drive went out on. It ended up stripping the threads on the end of the dead axle so it needs replaced. Welded a nut to the end of the axle so I could put my threaded rod and hydraulic ram on it. Put a 6" diameter pipe around the axle and brought the 50 ton press up to 10,000 psi expecting it to pop out any second. No luck. An old timer mechanic told me to use something heavy suspended as a pendulum with a chain tied to the end of the axle. Swing it so that it hits the chain at the bottom of the curve acting like a slide hammer jarring the axle. Put 8000 psi back on the press and swung an old 350 block a few times. No luck. Added some more weight to get it up to around 500 lbs. Still with the press at close to 10,000 and the 500 lbs, doesn't want to budge.

Just to clarify, I did remove the big nut underneath along with the pin holding the nut in place.

Does anyone know of any tricks to get those axles out?

D5 Dead Axle Removal