Check out the Tech Help Forum.
The thread there titled Crankshaft Balancer Failure! Must read by Benzmac has all the info you will need.
Yes it does affect most V6's and V8's well into the 2000 year models. Also has a couple of photos of the part and what to look for.

Crankshaft Balancer Failure! Must read.
http://www.peachparts.com/shopforum/showthread.php?p=390894