2021-2025 Bronco M220 Eaton ELocker Differential - Rear Features: Greatly improves rear end traction and handling Requires drilling into your truck's rear differential to run its wiring leads Built around an electromagnetic locking mechanism that captures all of the torque available to the rear axle and sends it to both rear wheels Lock the differential at the push of a button Includes an integrated wiring harness to make installation that much easier Fits Ford Bronco 4-Door & 2-Door w/ 32-spline & M220 rear axle ONLY The 2021-2025 Bronco M220 Eaton ELocker Differential Functions Smoothly and Quietly For any 2021-2025 Ford Bronco owner that wants to make driving in higher horsepower applications a breeze with full control and maximized traction, then you need to look to your differentials for upgrading. The 2021-2025 Bronco M220 Eaton ELocker Differential will ensure that your Bronco rear axle is running smoothly and quietly. With the ELocker design, you will be able to maximize traction, which comes in handy when you overland over rough and slippery terrain. When you heat those unstable spots in the terrain, you will be able to engage the differential at the push of a button, which is ideal for overlanding. Electromagnetic Locking Mechanism The 2021-2025 Bronco M220 Eaton ELocker Differential is built around an electromagnetic locking mechanism. This mechanism captures all of the torque available to the rear axle and sends it to both rear wheels, allowing your Bronco to retain enough traction for getting out of seemingly impossible situations off-road. Compared to standard clutch packs, you get much better performance with smooth and noise-free operation. When installing, the included integrated wiring harness makes things easy, but it does require drilling into your Bronco's rear differential to run its wiring leads. Before making the purchase, make sure that your Bronco has a M220 rear axle with 32-spline count. Fitment: 2021, 2022, 2023, 2024, 2025 Ford Bronco 4-Door w/ M220 rear axle 2021, 2022, 2023, 2024, 2025 Ford Bronco 2-Door w/ M220 rear axle Does Not Fit Ford Bronco Sport Welded Gears: Broncos equipped with 3.73 rear gears feature gears welded to the carrier, and you'll require replacement 3.73 ring-and-pinion gears for installation.