Eaton Detroit Truetrac Diff 28 Spline 1.20in Shaft Dia 3.25 & Up Ratio Rr 8in (Req LM102949/LM02910)

Starting with its helical gear design, the Eaton Detroit Truetrac differential is built to maximize wheel traction and improve your vehicle's driving characteristics. This isn't a clutch-based limited-slip that can chatter or require special fluids; the Truetrac operates smoothly and quietly, automatically engaging when needed without any driver input. Its design makes it a versatile traction solution suitable for a wide variety of vehicles, from classic Fords like the Mustang and Fairlane to Lincolns like the Continental. This unit is designed for 8-inch rear axles and features 28 splines with a 1.20-inch axle shaft diameter, compatible with ring and pinion ratios of 3.25 and numerically higher.

The internal helical gears are the key to the Truetrac's performance. They bias torque to the wheel with more grip, enhancing acceleration and handling, especially in slippery conditions. Because it relies on gear action rather than friction plates, it's maintenance-free and doesn't need special lubrication or friction modifiers, simplifying installation and ownership. This durable unit works seamlessly in both forward and reverse, providing consistent performance whether you're launching off the line or backing up. It's a solid option for those looking to improve traction without the drawbacks of some other limited-slip designs.

When installing this differential, please note that it requires specific carrier bearings, part numbers LM102949 and LM02910, which are sold separately. Ensure you have these on hand before beginning the installation process. This differential is designed to fit a broad range of rear 8-inch axle applications, offering a significant upgrade in traction and drivability for many classic vehicles.