Ok guys, I have this rubbing noise coming from my front driver side (I think) on my 2002 Tahoe. Took it to the dealer who said nothing was wrong. <br /><br />It is something with the tires because it increases and decreases with speed. It's kind of a pulsating noise.<br /><br />I just had the tires rotated. Could it possibly be a warped rotor, or maybe bad wheel bearing? I have even heard it could be the front diff? I really have no idea and unsure of the severity. Any help or advice would be appreciated. Thanks.