I've got 14 stock wheels. My 31x10.5x15's are getting worn. Are factory 15x6.5JJ wheels to narrow for 33's. I always carry 2 spare tires, one underneath and one on the Kamar carrier. Will this size also fit underneath. I've never seen anyone with 33x10.5's on these wheels. My '89FJ62 is riding on OME heavy/heavy springs, Kamar w/tire carrier, snorkel and an ECB bullbar. I don't want to buy any more wheels nor do I want to have mine split and widened.