Vibration or shake at highway speed?

[evan]

Thanks for all the replies! I've been subscribed to the thread but I didn't get any emails. I'll have to check the options in my CP to see if I've unselected something that should be selected.

I did a really thorough job washing the underside of the car and in behind the wheels and that seems to have taken care of it. I'm going to be getting some winter tires installed soon so I'll have them take a peak to make sure everything's copasetic.