I was looking at my tires yesterday and noticed the left rear tire on the inner edge of the tread is already to the wear bars but the outside edge is atleast 1-2 mm away.The right rear is wearing evenly acrossed.They are 275/40/17 nitto drags.I rebuilt the rearend with superior race axles and eaton posi unit.I was thinking maybe the axle tube is bent cause I dont really get any drive line vibrations so I would not think its an axle.Any you guys had this happen or any ideas on what it may be.