I know this sounds stupid but I have a wierd noise coming from back of my camaro, it sounds like a really badly cup tire,( tires are new), also have put 2 different sets of tires and wheels on and no change, put on new d/s no change, now installing new tailshaft bushing but i have a feeling it may be a axle bearing noise in my moser 12bolt starts around 40mph and gets worse at higher speeds at 100mph sounds like a flat tire but you dont feel it.any suggestions

 

Hey does it only make that sound only when accelerating?