After fighting a good battle they're back in.

I was able to get the ball joints impacted out with my Milwaukee electric impact. I broke them loose with it and followed it out with a ratchet. The threads one one look like they took a beating, but they still work. It was full of old grease that had dried out and become brittle. I threaded the ball joints into each again and they snugged up nicely.

Should I consider putting a few small tack welds on each ball joint? Or do the threads usually work out?