i wasn't running these just to look cool. cool i got them off a late 70's or early 80's 4x4 suburban. the rims look about 10" wide it's hard to tell for sure. the only size i can see on the tires is 31x10.5x16.5. i like the wider tires in the back for towing, but i think i would do for narrower ones in front. how wide are the stock rims suposed to be?