My wife's car AWD ford edge just blew out a tire thanks to the lovely place we both work. Talking with the tire place they are suggesting replacing all 4 due to the awd system. My insurance company will be billing our workplace's insurance to get it handles. So should I replace all 4 or just two, or just one? Current tires have plenty of life left, but have about 30k on them. So going to a new tire would make a difference.



