It's a good idea to tighten ALL the nuts!

[dougsic]

It's been almost a year since I installed a new guibo but it looks like I forgot something.

Heard a "swishing" sound that was speed dependent.

Aluminum filings everywhere are never a good thing.

Drive shaft acted like a lathe on the transmission.

[NC325iC]

nice, ive had one fully fall out before, threw it off balance enough to cause a very noticeable shake at higher rpm

[Mike325]

Ohhh, glad you caught that before it got worse. Any damage to the trans? Or just a nice mark on it?

[Garageaholic]

My M30 guibo

Not a bolt-tightening issue, just too much torque.