The inside of my rear tires are wearing VERY fast. I just had them replaced maybe three months ago, and the inside half of the rear tire thread is already almost bald. I had an alignment done when I had the tires replaced, so I don't think that's the problem. Could this be caused by bad struts? I put eibach springs on about a year and a half ago with the stock struts, so they may be going bad on me. That's all I can think of. I still have the stock 16's on, and I think I have a minor camber problem in the front, but the back seems to be just fine. Anyone have any suggestions? I can't afford to be buying new rear tires every 3-4 months.