The original 4WD locking hub on certain Ford and Lincoln SUVs and pickups often fails due to the brittle sintered shift dial breaking. This OE FIX solution features a reinforced shift dial that is 40 percent stronger than the factory design and features a high quality bearing to help ensure long-term reliability. Product Features:Improved design - this 4WD locking hub has a reinforced shift dial that can withstand 40 percent more torque force than the factory design to help prevent it from breaking in the futureUpgraded materials - this direct replacement solution features a high quality bearing to ensure long term reliabilityRigorously tested - this design has undergone more than 15 performance tests, including tests for salt spray corrosion, extreme cold durability, and thermal cyclingQuality assured - backed by a team of product experts in the United States and more than a century of automotive experience