Just a quick update. The dealership (who has been awesome on taking care of me and my jeep!) replaced the Rear Tranny Mount, however, the condition still exists. They called the Main Tech line and they suggested replacing the entire gear assembly, that it could be some hairline crack in something or some other unseen flaw, defect, broken piece, etc.
I hope this works! The service manager has assured me that they'll fix it somehow and I feel confident that they will.
If anyone else has experienced this, I'd love to hear from them!
The Hiking Artist (Hiking when I'm not Jeeping!)