Fasteners 15 and 17: when you tighten those, will the upper arm still move up and down freely? Or when you tighten them down, then pop the ball joint out, should it spring back up (preloaded bushings)?

I'm not sure if my old one's bushings are preloaded or if the bolt is just frozen inside it. The new one I have, I could still swing the arm up and down, even after tightening the 15 and 17.

Is this making any sense?