Choosing the right set of rear end gears is one of the most important decisions you can make for your 2011 to 2014 Mustang's drivetrain when modifying it for increased performance. Our aftermarket gears from Motive and Ford Racing go all the way up to a 4.56 drive ratio and are built out of high-quality gear steel to give you long-lasting and reliable performance. Many of our selection of Mustang 8.8 rear end gears are also available in complete maintenance kits that allow you to overhaul your Mustang's differential while you have everything opened up. While there a ton of rear end gear options, we generally recommend going with a 3.73 gear for a pure street car, 4.10 for street/strip applications, and higher gears for pure racing applications. Once you have a set of gears picked out, go take a look at our other Aftermarket Mustang Suspension Kits.