Ok, you tried using the spare on either side with no change.
Now may I suggest doing a tire rotation move the back tires to the front and see what happens.
It is also possible that you got a bad Hub Assembly and since the vibration is constant turning to the left I would say it would be the Passenger side Hub Assembly. Since more pressure is put on the passenger side when turning to the left and less pressure when turning right.
Sunday, July 18th, 2010 AT 7:31 PM