New gears and other driveline upgrades on the 2021-2024 Ford Bronco help compensate for larger wheel and tire combinations. These upgrades also help you have one of the quickest Broncos around. You can properly transfer power from your engine to your wheels to truly see the results of all your investment into making your Bronco a powerhouse on-and-off road. When you are running your engine in higher horsepower applications, this transfer of power can cause your differential to overheat if it is not equipped for this type of driving. Differential covers can dissipate this heat and a new differential will allow you to move each of the wheels at different speeds for proper wheel travel, traction, and control. Grab yourself a differential, a differential cover, and other driveline upgrades that your Bronco build needs, then make sure to also check out our Brake Upgrades and Towing Upgrades. Ford Bronco Fitments: 2021, 2022, 2023, 2024 Ford Bronco with 2.3L EcoBoost or 2.7L EcoBoost engines. Submodel Fitments: Base, Big Bend, Black Diamond, Outer Banks, Wildtrak, Badlands, First Edition. Some Exceptions apply, please see individual product pages for specific fitments.