Curious on how you are determining it to be the hub. I am asking because I have asked my dealer 4 times to identify the issue and they keep brushing it off as other items. “No issue found”, “Oh it’s the tires” , I just put brand new Michelins and it’s the same as previous set. “It may be the rotors and runout on them”.
I have read about axle /differential bearings as well. Mine isn’t audible so much, but more grumbling like that resonates up and I can feel it in the accelerator pedal as a vibration especially at hwy speed.
When I told the dealer I can feel the vibration in the accelerator, the quick response was “impossible, it’s a drive by wire system”. So it kind of shows you the level of understanding I’m dealing with.
After explaining I know it’s Drive by wire but there is a harmonic type vibration being felt is when they stated the rotor runout issue. I asked them to put chassis ears on the parts but I feel like since brakes are coming up soon I’ll replace rotors just to rule it out.