I was testing gear operation with the rear end jacked up. As soon as the clutch engaged in any gear (except N) I get this weird clanking noise. It's not consistent tho. I have a hard time figuring out where it's coming from.
Things I observed:
The TOB is kind of noisy, I can hear it spinning (maybe they are supposed to be?)
The rear end pumpkin was moving up and down when the noise happen, but not consistent with the noise. Not sure if the clank is coming from up front and transmitting down to the rear end.
I had a hard time capturing the rear end moving, but the sound is pretty clear. Here is a video.
I didn't read all replies, but I would take it for a drive before deciding that there is a real problem. What a car seems to be doing with the rear end jacked is misleading/exaggerated sometimes.