Ok just spoke to a Jeep dealer here in Nor Cal and they are still a good part number and are 20.10 each for the repair kit. Or as I said earlier you can contact a Crown Dealer :

All J Products LLC
41610 Brownie Ln
Big Bear, CA 92315
909-866-4800
This is the closest one to you, part number is 83502745 . Please give me the number the dealer told you was correct so I can referance it to see what they looked up.