Actually 2002 Explorer 4x4's seem pretty rare around here. Almost all are 4x2's. In fact on a major lot, the one we got was the only one that was a 4x4 Explorer 2002. Villa Ford in Orange, CA. And this was an Ad vehicle that had the pre 01/28/2002 changes and was made in December but didn't sell till now. Maybe because it was a 4x4? Most people around here will not spend the extra money i believe. Has the high back buckets in front, no fog lights and the rear view mirror is manual. 01/28/2002 the XLT got fog lights, low back buckets with head rests and the automatic rear view mirror(forget what thats called...monochromatic?).
So anyway they all have a tow package but there is a tow package upgrade to class 3/4. The hitch hole in back is bigger. Since all i have seen on the lots around here is 4x2 except for ours i couldn't say.