I drive like an old grandma and I'm still going through a set of tires about every 4k miles. I measured the distance between the wheels between the front and rear on both sides of the vehicle and the distance on the passenger side is over an inch longer. I dropped the rear end to see if the center pin was sheared and it wasn't. I put it back together and it still is off. The axle has no visible damage to it. I'm really at a loss for what the heck to do.