It's in the rears where the GV axles get confusing. At some point, I think '03 the rear axles changed and are not the same as Track/Kick axles. As far as I've seen the fronts were the same from 96-05.
I've *heard* that '03-05 GV's all have steel front housings. Can't confirm that though.
Yeah, I have a '03 and no, I never remember to take a magnet to it and check.