Read with interest your tale of woe. Hope it worked out in the end after all that frustration.

I have a similar problem with my xfire. BUT, only the LR wore down on the inside. It had been aligned at the dealership about 4,000 miles before (total of 15,000 on the car now).

My question is, what are good alignment specifications? The alignment shop said that the camber in the rear was supposed to be about 2.2 degrees, which seems like a lot.

Can anyone direct me to previous threads on this issue? I've done searches, and come up blank.

I have just ordered one tire - as the other 3 still look good. Problem is that the CSC2 is no longer produced, and I am getting a CSC3. Will see how that works out.

Henry Payne