3.73 gears. While on vacation over the long weekend I travelled 800 miles roundtrip and got 17 mpg average. This is anywhere between interstate at 75mph, two lane highways between 40-60mph, some stop and go traffic, and city driving. I'm happy with it and the truck really loosened up after the trip. This is using the DIC but, it seemed on with my hand calcs

 

Those are pretty great numbers considering the gear ratio. For my new F150 I was looking at the same engine and gears. Thx for the info. It is a nice looking truck.