So I learned the hard way on my 05 that the differentials are very touchy with tire replacements. I put on my winter wheel/tire set when I hit 1200 miles on the stock Dunlop SP Sport 01. I had a nail blow the tire twice (once repaired once hit the sidewall and needs to be replaced). Would 1200 miles of normal driving effect the differentials at all when I buy a replacement tires? There appears to not be any wear but I know it only takes 2/32s to screw things up. I don't have anything to measure the tire tread so any input would be great.