lanny's advice is always sound. the problem may just be the widely known
wheel ballance issue. but it could be the bearings as it was in my can and
which has similar symptons. you may find this an interesting read....
http://www.miata.net/garage/65_mph.html

"Lanny Chambers" > wrote in message
...
> In article .com>,
> "Trent" > wrote:
>
>> I took it and had the wheels balanced and
>> rotated over the weekend, but as I was coming in to work today, I
>> noticed the shimming is still there
>
> Miatas are very sensitive to wheel balance. You need a better balance
> job. Find a shop with a Hunter GSP9700 he
> http://www.gsp9700.com/pub/search/findgsp9700.cfm
>
> --
> Lanny Chambers
> '94C, St. Louis
> http://www.hummingbirds.net/alignment.html