[PaPaStewySnipes]

It is the upper, driver side moog ball joing. I would normally replace just as you say, however it was starting to tear where it attaches/glued the the damaged mounting plate, not necessarily in the middle of boot. The ball joint is not loose at all and had no signs of dirt in it. That being said, I will still shoot grease in it till old lube is out and install new boot. Moog has zerks so this is very easy to do. It is very easy to replace whole joint but I rather not if joint is not loose and smooth. With new boots being sent at no cost, not even shipping, I will spend the money on bushings for sway bar.