By rear tires are toast. And my front have about 1/3 life left. I have Michelin Latitudes on their now but would like to switch to the Bridgestone Duelers. Is it ok or possible to have a different tire size on the front and the back. I don't really want to get 4 new tires. I am worried about the tire revolutions being different with the all wheel drive system the X has. Anyways, any help is much appreciated.
Thanks in advance.

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Eazy wit da Haaahdwaire!!!!