Hi, I had a guy install new Bilstein 5100's and I feel almost a float feeling in front end, slight, but there and the rack is new, and all other front end components (suspension new as well). I also hear a bang when I back up and turn left coming from the left front of truck. The only thing we can see is on the Bilsteins in front right side, the nut on top of shock is threaded down pretty far, exposing 1/2 inch or so of the "rod" coming out of top if that makes sense. The other side, that nut is not threaded down very far as all, hardly exposing the rod on that side. Can I tighten these while on car? I tried to tighten that nut with a 19 wrench, but the whole shock just spinned. I then tried to hold that rod and turn the nut, but could not tighten or move. Anybody know what I need to do, or do I need to remove the whole shock and springs and redo job?