I have owned this van from when it had 46,000 to 73,000 miles. I am now replacing my third wheel bearing. Now have replaced both front and 1 back. I have not found any sort of recall on this. I still have a 1996 Caravan and have never dealt with wheel bearings.
Chrysler should replace the wheel bearings for free or at least offer partial reimbursement for those who have had this issue.