My car has had a vibration since I got it, coming from the back. Bad wheel bearings have been changed since. Now, the vibration got worse when I put my 19" HP Evo wheels on but that was before the wheel bearing change. After I replaced them it's still there. Had my wheels rebalanced today and nothing changed. From what I'm hearing I need hub centric rings. But my question is, would it only vibrate at 50+ mph? I mean a pretty bad vibration, one that makes me not take my car on the interstate at all right now. I'm lost, and frustrated...

 

The only other thing I can think of is the rim is bent or the belts in the tires have snapped, but that only happens when the tires are really really worn. Besides, you just had them balanced, the shop would have spotted either problem easy.

So it should be hub centric rings. If you had stock wheels you could test if you get the same vibration or not.

 

rings!