While you're tearing open your 2008-2010 F250 or F350's front and/or rear differentials, you might as well replace their key components, bearings, and seals with new hardware to keep your truck running at its absolute best. We even have a few gear and master install kits available so that you get everything you need in on place. Be sure to check out our selection of Super Duty Wheels & Tires while you're at it! 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.