Hi,
My 350z has just recently started making a quiet whining sound at 50mph and above. I don't believe its engine related as the whine doesn't change with rpm just speed and I don't think its gearbox related as it still makes the sound in neutral/with the clutch press in and in all gears. Does this sound like a wheel bearing or differential issue?
The sound gets louder the faster I go and disappears below 50mph.
Any help would be appreciated.
Thanks