We have come up with a Differential Cover for the 10 bolt guys (The 12 bolt is in R & D). If you are interested in the ten bolt I currently have a group buy going at $155 for black, $145 for sandblasted and $175 for Polished. You can order them in the store and when I have the minimum of ten needed by the vendor I will place the order (if ten are not ordered I will refund 100% of the amount paid).
Rear Differential Cover (10 bolt)
This is also available with the "Jeep" logo in the store if you prefer that design.