'03 tacome trd, 5speed v6, coilovers, upper arms,maybe 3" lift, 3" all pro rear springs in back, thinking about tubbing the firewall, maybe 1" bl and putting 35 12.50x15 on 15x8 wheels, and also doing 4.88 gears. im running 33" tires now, i can get them to rub a little under a hard turn/stuff. think it would really benefit me any off road? not worried about gas mileage or road crap. i do more expolring type wheeling, a little rock crawling, a little fast fire road stuff. opinoins?