[Varinn]

Seems like you're correct, would also explain the engine rpm dependent vibration that appeared the day I installed a set of transmission mounts. Best guess is they were already loose and a tiny bit of lifting and lowering the trans during the mount swap was enough to work the bolts completely loose. Hope they just fell out, instead of breaking...

I had pinned the vibration as being mount related so opted to drive it yesterday until I had a chance to remove them last night. Here's hoping that there is no damage to the swaybar or the oil pan, as I hear that can go hand in hand with the mount failing but have not seen pictures of what exactly happens to them.

Not the greatest ownership experience so far, should have bought a Nissan.