Tow Vehicle Improvements

No need to change gears. With the 6sp and 3.73's you'll be fine. I pulled the same TT with an 08 4sp 3.73 and the 10 6sp. The 10 6sp really makes the 5.4 come to life. I had a 10 5.4 with 3.73 gears and towed 7300lbs. Did it do okay? Ya okay, not great. Contrary to what some say there is no way to lockout 6th gear (OD) in the 2010. It doesn't even have a select shift option. You are at the mercy of the trucks tranny programing. So get used to it hunting for gears. I had mine flashed and it made no difference. I live in Oregon and everywhere we go there's hills and mountains. Even on the flats it will downshift when going over freeway overpasses'. Get a ScanGage2, to help you keep an eye on tranny temps. I had one for an 08 F150 and just transferred it to the 10 F150. Those gages on the dash won't move till you're in the danger zone. With that being said I pulled all over Oregon, Tahoe and northern Ca and never had a heating issue. Even with the tranny hunting for gears the temps hardly changed. Ford did their homework on the tranny coolers. If you start slowing down on steeper climbs just push the gas pedal a little more. The 5.4 runs best up hills in the 3-3600 range. Just get an extra gas card as I averaged 8.5 in the hills/mtns of Oregon.:)