Eaton Detroit Truetrac Differential 30 Spline 1.32in Axle Shaft Dia 2.73 & Up Ratio Rear 8.5in/8.6in

What you get with this Eaton Detroit Truetrac differential is a well-built, helical-gear limited-slip unit designed to put power down more effectively. It's a maintenance-free component that works automatically, whether you're moving forward or in reverse, making it a versatile traction solution for a wide range of vehicles. This differential is built for 8.5-inch and 8.6-inch rear axles and features 30 splines with a 1.32-inch axle shaft diameter, compatible with gear ratios of 2.73 and numerically higher.

The helical gears inside the Truetrac are the key to its smooth and quiet operation. Unlike clutch-based limited-slip units, it doesn't require special friction modifiers or lubricants, which simplifies maintenance and ownership. When one wheel starts to lose traction, the gears automatically bias torque to the wheel that has grip, helping you maintain forward momentum. This automatic engagement means you don't have to do anything; the differential handles it seamlessly, improving both acceleration and handling characteristics. It's a solid choice for many trucks and SUVs, including models like the Chevrolet Avalanche 1500, Buick Rainier, and Ford F-150, among many others.

Installing this differential means you're upgrading your vehicle's ability to handle slippery conditions, towing, or spirited driving without the harsh engagement or noise sometimes associated with other traction-enhancing devices. Because it's designed for a wide range of applications, it's important to confirm it's the right fit for your specific rear axle housing size and spline count. This unit is designed for 8.5-inch and 8.6-inch rear ends and requires 30-spline axles.