A new differential cover is one of the best ways to give your 2008 to 2010 Super Duty truck an aggressive, custom look, especially if your truck is fitted with a nice lift. We also carry complete locking differentials made by some of the most reputable names in the business. We here at Stage 3 have classy performance differential covers for both the front and rear differentials for an even and awesome look. These differential covers not only look good, they can also lower your F250 or F350's differential oil temperatures by a substantial margin and prolong the life of your Super Duty's drivetrain. Ford Super Duty Fitments: 2008, 2009, 2010 Ford F250 & F350 6.4L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.