Mine is missing the ring on the passenger side inside. Plus my driver's side must be out, becuase it's consistently getting worse, slowly but surely. Whenever I drive dead straight, or do a left turn, I have a rubbing noise. It was diagnosed as the passenger side, so I got that replaced, and it did nothing. So I'm assuming it was the driver side this whole time....
I'm really not sure, because there's a TSB from Ford that notes "a rubbing noise similar to a bad wheel bearing" or something like that. From what I found, it didn't list a fix, just that they knew about it.
