i just bought a 2002 w/17" wheels. if you want BFG AT T/A's, the biggest they make for 17" wheels is 265 70R17. you have to remove the front mud flaps but they fit with about 1/2" of clearance when the wheel is cut. i think the overall diameter on these is like 31.7" or something. i don't know about any other tires as BFG's are the one and only for me.
good luck!