I was wanting to get some BFGoodrich All-Terrain 31x10.5 15s on stock EB rims for 93 Ex and the local tire shop said they could not put larger sized tires on any Explorers. Has anybody else run into this problem, and what are my options? My buddy just had his Grand Cherokee's tires replaced with the 31x10.5 15 All-Terrains and he was upgrading from a 235.7515 as well, also done at the same shop. What's the deal?