Your very welcome guys. Remember you cant really test to see if they are bad, you just have to replace them to fix it (ya, kind of sucks).
Anyways, I bought them on ebay a while back. These are the exact same ones
http://cgi.ebay.com/ebaymotors/Porsche-986-Boxster-97-04-Adjustable-Rear-Track-Arms-/370504777678?pt=Motors_Car_Truck_Parts_Accessories&hash=item5643ce3fce
They are super easy to install (2 bolts each, and easy to get to), just make sure when you install them you tighten the lock nuts well. If they are loose, it will make the same exact sound as if you never fixed it. (trust me, I learned from experience).
hope this works!
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