Anything periodic is not suspension related, it's gotta be drive train.
Differential noise is the only thing I can think of that is slower than tire rotation (spyder or carrier), everything else is tire speed or driveshaft speed.
Do check for crap rattling in the dust shield for the rear brakes, stuck rear pads (very common, they really need to be pulled every oil change and have the rust removed), and so forth.
Also check the half shafts for excessive end to end play -- they start by clicking, then vibrate, then bind and clank, and eventually break or make horrible noises.
The rear wheel bearings can go bad too, but that will change as you turn right or left and change the loading. Large double race ball bearings in the wheel carrier.
Peter _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
