I have a recently purchased my second S80. 2008 3.2 w/ 112000miles. About three months ago I started noticing a vibration that seemed to be coming from the front passenger side wheel. I checked pressure, balanced tires, and rotated tires but nothing seemed to help. I've replaced both front axles (the right one twice) and alligned. After all this it ran fine for a couple of weeks then today started again. It mostly happens when cold but always when it is or has been raining. Any help would be appreciated if anyone is familiar with this problem. Thank you.