Awesome thanks, what on the tag tells you the rear end? Just curious for the future. The 3.31 rear explains why this truck is not as punchy when you are just driving around in a parking lot or at low speeds. It also feels like there is a dead spot just like my 5L in third gear mild throttle going up hill.

Seamed like the Ecoboost I drove with 3.73 was pretty linear throught the rev range no matter what the situation was. Still not bad performance for 3.31 I would not hesitate to order one if I was going to commute in this thing. Also really good mpg compared to 3.73 rear, I can see why such the wide spread in responses with mpg's on these trucks.