Shop Gear Install Kits & Components before installing new gears in your 2008-2010 Ford 6.4L Powerstroke. When you rebuild or repair your differential a complete overhaul or master installation kit gives you everything you need. Get all the shims, seals, bearings, gaskets, and crush sleeves that are required when you replace the gears in your axle. Check out all the leading brands offered including Nitro Gear & Axle, Eaton, USA Standard Gear, Yukon Gear & Axle, Dorman, Cometic Gasket, Mahle, and more!