The noise i am hearing is something else. I put the car on a lift and checked with a tech, and the diff mounts seem fine. My noise is strictly going over a rough bump, such as a speed bump, and i only hear it during slower speeds from the left rear of the car. We checked shocks, springs, all mounts, and bushings, even anything loose in the trunk, such as spare, and cant isolate it. It is a hollow sounding clunk. I still think it will go away once i replace all struts and shocks, and all necessary hardware associated with them next week.
Bilstein HD Struts
16" E420 wheels