I also am having issues with the back 05 infiniti g35x. I changed the bearing last week, and the noise decreased tremdously, however it is faint, and at certain speeds it seems to vibrate. One mechanic is telling me to change the wheel bearing again, and one is telling me its the knuckle to the axle? Im at a lost.

 

Did you replace just one wheel bearing or on multiple wheels? Are the driveshaft boots ripped? Have you had your tires balanced and alignment done since this repair?

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