Here's the pic of the whole differential:
No it's not mine. No I didn't remove my differential this far either. Found it on the internets.
The top one was the bad one. it's hard to see and hard to identify that it's bad from just looking underneath cause you really cant see it much. When I took out the bolt going through it the middle of the isolator was almost ready to fall out making the bump sound as it shifts pressure on the diff. Thanks Gulf550 for the advice. I did end up unbolting the driveshaft and letting it rotate down. It was much easier that way. Also thanks for the ball joint press advice. Would have taken me a while to figure that out as well.