chris642

hey, ever since i bought my 02 WS6 i have noticed a really annoying pulsating "wooshing" sound that mainly becomes audible above 15-20 MPH and the frequency increases with the speed. Its not a consistant whine like the rear ends usually do, and i really am unsure as to what it is. i changed the pinion seal becasue it was leaking, put in royal purple gear oil plus the GM additive and that didnt change the sound at all. Im guessing its a wheel or axle bearing maybe? what do you guys think, and is there any write ups on how to change out these parts? I need to fix this before it gets warm out and i go to the track! thanks alot!