Noise in rear end since gear install

Ok guys since we got the gears installed a few weeks ago I have noticed a popping noise in the rear end when hitting a bump. Metal on metal sound. I think I have it tracked down to whatever this is in the pics. I noticed there was a gap and I could see the paint on the other side of the bracket. Also when I looked at the drivers side, the sway bar end link looks off center.
So on the first one is this just something that needs to be tightened up or is something broken?
And on the sway bar end link, does that look normal?

Also I should note they dropped the dif to do the gear change

That panhard bar bolt needs to be tightened up. The sway bar bushing is not really an issue

Torque for the panhard bar bolt is 129 ft-lbs, make sure the suspension is at ride height when you tighten it down.

I'd swap w/ net bolts & bushings too...those are pretty horse$hit.