6 or 12 Ton Hydraulic Press?
I have a 20 ton press. Works well on the lower control arm bushings and shells (with the right size tap screwed into the shell).
I don't use a shop press on the upper control arms. It is real easy to bend the crap out of the upper control arm using a shop press. There's a special tool for removing the upper bushings; that tool and a good vise are all you need.