Yo, i just went out to get a set of 235/70/16 tires for the xl7,an the tire guys at the tire place refused to sell me a set,telling me that it's a 7 or 8% difference and it will burn out my transmission and damage my diff!same story for a set of 225/70/16, 5% difference but he will sell me the 225/70/16 but i should not go back to him if i have problems with the jeep in the future.WHAT THE F#%*!!!!!!!!!!!!!!!!!