Ball joint replacement

Yes!!! Its free in the rear it won't come out of the lca

In that case I would remove the LCA pivot pin, slide the bar out, and then drive the LCA off the end of the torsion bar. Again, you may need to soak that in penetrating oil, or use heat.

If you use heat, the torsion bar will have to be replaced. But I think you should probably be replacing those bars anyway.