Eaton Detroit Locker Differential 35 Spline 1.50in Axle Shaft Diameter 4.10 & Up Ratio Rear Dana 80

If you're looking to get serious traction for your truck or heavy-duty vehicle, especially when tackling tough terrain or towing heavy loads, the Eaton Detroit Locker is a serious upgrade for your rear axle. This isn't just a limited-slip unit; it's a 100% automatic locking differential that ensures both rear wheels are always driven, even if one loses contact with the ground. This means you get maximum grip when you need it most, whether you're crawling over rocks, pulling a trailer out of a muddy lot, or just need that extra bit of confidence in slippery conditions.

The Detroit Locker is known for its bullet-proof design and unmatched strength. It uses a unique mechanism that automatically locks the two axle shafts together when you apply throttle, and then unlocks them when you coast or turn, allowing for normal street driving without binding. This clutchless, maintenance-free design means you don't have to worry about replacing friction plates or dealing with complex adjustments. It works reliably in both forward and reverse, making it a dependable choice for a wide range of demanding applications. This particular model is designed for Dana 80 rear axles, featuring 35-spline axle shafts and compatible with 4.10 and numerically lower gear ratios.

This differential fits a wide variety of trucks and vans, including popular models like the Ford F-350 Super Duty, Chevrolet Silverado 2500 HD, and Dodge Ram 2500 Van. Because it's a full locker, it's best suited for vehicles that see a mix of off-road or work use and highway driving, where maximum traction is prioritized. For installation, you'll typically need to rebuild your rear axle, which involves setting gear backlash and bearing preloads, so referring to the manufacturer's installation instructions is highly recommended.