At 40-45 mph hear wheel bearing noise. dealer confirmed and both right front bearings (main and carrier) replaced by ford dealer. still had noise after replacement. dealer confirmed that the carrier bearing just replaced was bad. replaced carrier bearing again but still having same noise. dealer stated there have been many wheel bearing problems, and that faulty bearings are coming to ford from vendor. problem as yet not resolved. seems ford is unable to identify which bearings are bad without installing them. i am concerned with potential wheel lock up at speeds, especially a front wheel. *tr