74 duster control arms!!!

Hmmm, my buddy let me use his ball joint socket, but it was too big for mine. Mine measer about 1 7/8" square socket. I assume the ball joints are screwed in place, hence the need for new control arms.... apparantly the guy I took the arms to removed the ball joints by pressed them out. Had a couple people tell me that the threads are now wrecked so I need to get new arms. I paint cars for a living, so yes, Im an idiot in this area duhhh lol. Any help would be appreciated.