I put some Sumitumo tires on the car....they have lasted for about a year but for some reason the tires on the rear wore unevenly. <p>Strange b/c they were rotated and it is an all wheel drive car( with a front wheel drive bias)...but nonetheless the fronts are fine ( they have at least another 4- 6 months of tread on them) and the rears are in need of being replaced. <p>Has anyone ever replaced just two tires?<p>Has anyone ever replaced two tires with a different make of tire than the what was already on the car? Were their any nasty side effect associated with the different tires? <p>Just wondering....it seems silly to replace 4 tires when only two need replacing.