Maybe a chunk of ice in the wheel?
Regards,
JR

Signature
---------------------------------------------------------------------
"Eliminate annoying spam!
My mailbox is protected by iHateSpam, the #1-rated spam buster."
http://www.ihatespam.net
> Relatively new problem-- drive over 50mph and there is a vibration, mainly
> felt in steering wheel. It has been very cold and snowy here, until
> yesterday. We had a warm up today, 40 degrees. Snow and ice melted...
> today I drove 60 on the highway, no more shaking. Something to do with
> the snow/cold only?