Ball join issues

my friend owns a 1992 Sentra. While trying to remove the passanger side ball joint we encountered a wierd proiblem. While the drivers side ball joint came out easily the passanger side ball joint decided to not move at all. The bolt seems to be stuck. After 2 or so hours of using pb blaster and a hammer nothing happened.

We're kinda stuck on this, any help is appreceated.

How about which bolt?

They make a ball joint puller.
or
you could try a torch heat it up then pound on it with your hammer.
dont heat it up to much thought.