33s will fit under a stock ford bronco body, 80-86 style, with the 15x10 rims, a body lift might be good to go with, but be careful, cause they raise your center of gravity, and sometimes that isnt a very good idea, cause you can get "hindsighted" as my buddies and i like to put it, and roll very easy. You're from seattle? check
www.2bigbroncos.org, and check that out, the northwest chapter is all from washington, idaho, and oregon, we got a mailing list, you can get around 100 replies a day!