Originally Posted by ZeeRay

Well guys I have this clunk that just developed as well. Before any of the locals try to flame me as a newbie or some turnip wagon ballast let me state the following. One until about 3 years ago I was an L-1 certified ASE autotech, I have built and driven more cars than no doubt 85% of those on this forum, and grew up in a prototype aerospace machine shop.
When it comes to tolerances and proper operation I think I can safely say that I have a pretty damn good grasp on things. This noise is what makes you lean directly to the typical U-joint or ring and pinion slack. Of course our independent suspension gives us the option of CV shafts as well.
Regardless, don't let anyone tell you that this is acceptable. It is a sign of wear and loss of operable tolerances. I have just over 7,000 miles on my Z and don't drive it hard. This is unacceptable and only going to get worse.
Reading here and listening to some of these guys bash others for being concerned and happily driving their cars while destroying parts of them is enough to make me turn a deaf ear.
If some of you want to leave it and sound like your driving on square tires because your car isn't a rolls royce go ahead. I would rather have mine in proper operating order.

P.S. It goes to the dealer in the A.M.