Stock tires are 215 55r 16 pirelli p6 purchased at 81k miles. Passenger rear tire wore out in less than 20k miles and blew out this past weekend (car now has 101k miles), and driver rear is at 3/32nds. Front tires are at 50% tread. My question is I have found a complete set of Michelin pilot exaltos A/S at 10/32 tread and great price at $200 mountedbalanced. However these tires are 215 60 16's. The other option is to throw 2 used tires at 215 55 16 for $75 mounted. So i decided to go with the Michelins, but the tire shop couldnt get the driver front tire off cuz 1 of the lugnuts was over torqued, slightly bent and didnt want to risk anything. I had new front tire replaced around 10k miles ago with a new pirelli p6 at Dobbs tire center in St Louis. Should I drive car 2 hours away back to Dobbs where this tire was put on about 6 months ago??? And then should I throw 2 used Mastercraft on the rear side or go with the Michelins that are slightly taller? I think the difference is little over 3%!!