Eaton Detroit Truetrac Differential 27 Spline 1.16in Axle Shaft Dia 3.54 & Down Ratio Front Dana 30

If you're looking to improve traction on a wide range of classic trucks and Jeeps, the Eaton Detroit Truetrac differential is a solid choice. This helical-gear limited-slip unit is designed to automatically send power to the wheel with the most grip, enhancing your vehicle's ability to move forward in challenging conditions. It's a popular upgrade for vehicles like the Jeep CJ series, Ford Bronco, and International Scout, offering a significant improvement over open differentials without the harsh engagement of some other traction systems.

What sets the Truetrac apart is its maintenance-free operation. Unlike clutch-based limited-slip differentials, it doesn't require special lubrication or friction modifiers, and it operates smoothly and quietly in both forward and reverse. The helical gear design means it engages automatically as soon as torque is applied, providing consistent traction bias without driver input. This unit is built for a 27-spline axle shaft with a 1.16-inch diameter and is designed to work with ring and pinion gear sets with ratios of 3.54 and numerically lower (meaning higher number ratios like 4.10 or 4.56). It's specifically intended for Dana 30 front axles, and for non-disconnect applications.

This differential is a well-built component that can handle the demands of daily driving and off-road use. It's a smart investment for anyone looking for improved performance and confidence on varied terrain. When installing, remember to consult the manufacturer's instructions for the specific torque and setup procedures required for your Dana 30 axle.