With the huge power potential of a well modded and fine tuned 6.7L in fairly easy reach, you might want to make sure your 2011-2016 F250 or F350's transmission can handle some extra load, especially if your Super Duty is getting up into higher mileages on your odometer. These rebuild kits can help get your F250 or F350's transmission back into great shape. Ford Super Duty Fitments: 2011, 2012, 2013, 2014, 2015, 2016 Ford F250 & F350 6.7L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.