I have a 2002 XLT and just bought 20s. I just ordered the tires, 275/45/20 and am awaiting them soon. I say go with 20s, on the new xlts, i had the 17' rims, and it would be ridiculous to pay the money just for an extra inch. Spend a few extra bucks and get 20s, you wont be dissapointed. I will...