I have an F-150 Eco Boost engine with max tow package and I believe I have the 3.73 gear. As long as you are not pulling really heavy weight the 5.0 should do fine. I have heard people hauling heavier weight with it and it struggles to keep up. I am towing a 10,000 lb travel trailer with no problems. It is towing great. How ever once towing it goes down to 7 mpg.