I also have a 2002 GC and had to get NEW (new to me!) roof rack rails, cause some one liked mine end stole 'em at a parking garage.
I got mine from a friend that prepares used cars at a dealership prior to puting 'em out for sale, and mine came off of a '99 that they were sending out to auction cause it had been sitting longer than 45 days. But I did notice mine DOES have the little holes along the outside edge of the roof rail, to guide you when latching down on the cross rails. I used to have a '99 2WD (BIG mistake! traded in for 4WD.) and that had them too.
Well, holes or not they are suposed to be the same from 99 to 04. I've actualy seen a guy driving arround with some of the silver ones off of an '03 or '04 Freedom Edition and his rig is a 2000 Laredo 4WD.