Eaton Detroit Truetrac Diff 30 Spline 1.30in Axle Shaft Dia 3.73 & Up Ratio GM Half Ton Truck

The Detroit Truetrac differential uses a helical-gear design to automatically manage torque bias, giving you improved traction when you need it most. This isn't a clutch-based limited-slip that can wear out or require special fluids; the Truetrac operates smoothly and quietly using its internal gear system, working effectively in both forward and reverse. It's a maintenance-free unit that enhances acceleration and handling for a wide range of GM half-ton trucks and SUVs, including models like the Chevrolet C10 Pickup and GMC K1500 Pickup.

Built with durable components, this differential is designed for longevity and consistent performance. It's set up for axles with 30 splines and 1.30-inch diameter shafts, and it's intended for use with ring and pinion gear sets with a ratio of 3.73 or numerically lower (like 4.10 or 4.56). This makes it a versatile upgrade for many classic GM trucks and SUVs from the 1960s through the early 1980s, providing a noticeable improvement in grip without the drawbacks of other limited-slip designs.

When installing this differential, ensure you have the correct ring and pinion gears for your desired ratio, as this unit is designed to work with 3.73 and numerically lower ratios. It's a solid choice for anyone looking to improve their vehicle's traction for daily driving or even for light off-road use, offering a reliable and automatic solution.