wheel question
#2
Yes, the 2003 Expy's were the first of the new body style and 6x135 bolt pattern. The 2002 still had the 5x135 bolt pattern like your truck. The only difference that I can't help with is whether the 4x4 hubs are different than 2wd. I would guess not, because I have seen what looks like the same wheels on both 2wd and 4wd vehicles, but I'm not certain.