I'm looking for tires but tirerack.com list my stock tires has either the 235/75R15"s or the 31x10.5 15"s. The problem I'm having is the tires I have now are 265/70R15's my local tire dealers are telling me that most Durangos cam with that size tire. I just want the best size tire for gas mileage and looks but mostly gas mileage. I drive a 2000 Durango sport with the 4.7L engine