Eaton Detroit Locker Differential 35 Spline 1.50in Axle Shaft Diameter 3.25 & Up Ratio Rear 9in

If you're looking to get the most traction out of your Ford 9-inch rear end, the Eaton Detroit Locker is a seriously strong option. This is a 100% automatic locking differential, meaning it locks both rear wheels together whenever you apply power. This design ensures that both wheels are always driving, even if one tire loses contact with the ground, which is crucial for off-road adventures, towing heavy loads, or just getting around in slippery conditions.

What makes the Detroit Locker stand out is its bullet-proof, clutchless design. Unlike other limited-slip differentials that use clutches that wear out over time, the Detroit Locker uses a clever internal mechanism that automatically locks and unlocks based on torque. This means it's maintenance-free and built to last. It works equally well whether you're moving forward or in reverse, and it's known for its unmatched strength. This particular model is designed for 35-spline axles with a 1.50-inch shaft diameter and works with gear ratios of 3.25 and numerically higher.

This differential is a popular choice for a wide range of applications, from mild street use to extreme off-roading. It's a solid option for Ford, Lincoln, and Mercury cars, as well as Ford small trucks, minivans, and SUVs that use the robust Ford 9-inch rear axle. Keep in mind that while this locker provides incredible traction, it will make your vehicle handle differently on dry pavement during turns, as both wheels are forced to rotate at the same speed. It's a trade-off for maximum grip when you need it most.