This would be cool to see in a super duty but I worry about people with 4x4. You would need to find a way to lock out what ever gear doesn't match the front end while going into 4x4. I would also keep the 3.73 as going to a lower gear in a gas truck would be kind of counter productive in that it would want to downshift to much. Adding a 4.56 or 4.88 would be great when towing