I ran 33x10.50s on my 97 and I loved em. When I mounted them on my stock wheels they would rub the frame a little at full lock. When I put my steelies on they didnt rub anywhere cause the backspace difference. I think the taller skinnier will help keep some MPG a little specially on the highway. I dont think the difference would be that great with the 2 sizes. I have pictures of my 97 with 33x10.50 km1s if you want me to post them.