FW: Steering wheel shimmy at highway speeds

[Tony Urban]

I forgot to mention that my car is a 1993 90S Audio Quattro.

-----Original Message-----
From: Tony Urban [mailto:tony at crazyralph.com] 
Sent: Thursday, February 16, 2006 1:14 PM
To: 'quattro at audifans.com'
Subject: Steering wheel shimmy at highway speeds

Hi all,

Over the past month or two I've noticed a shimmy in my steering wheel
when I hit 55 and above.  I'd think it was my alignment or a tire but it
seems to come and go (although it's there more than it isn't).  To
better explain, I'll be going 65 and the wheel will be shuddering about
1/8 inch side to side, I'll round a curve and the shimmy will go away.
I round another curve and it returns.

Does anyone have an idea one what could be causing this problem?

Thanks!

Tony