Eaton Detroit Truetrac Differential 28 Spline 1.20in Axle Shaft Diameter

If you're looking to get more grip from your rear-wheel-drive vehicle, especially when accelerating or navigating slippery conditions, a limited-slip differential like the Eaton Detroit Truetrac is a smart upgrade. This helical-gear style unit works automatically to send power to the wheel with the most traction, improving acceleration and handling without any fuss. It's designed to work smoothly and quietly in both forward and reverse, making it a versatile choice for a wide range of vehicles, from classic Ford Mustangs and Rangers to more modern Ford Focus and Fusion models.

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 won't wear out over time. The helical gears inside are always engaged, providing smooth, on-demand traction bias when you need it most. This means you get consistent performance whether you're launching off the line, driving in rain or snow, or even just maneuvering in a parking lot. It's a well-built unit that's known for its durability and quiet operation, offering a significant improvement over an open differential.

This particular Detroit Truetrac is set up for 28-spline axles with a 1.20-inch shaft diameter and is designed for the Ford 8.8-inch rear axle. It fits a broad spectrum of Ford vehicles, so be sure to check the fitment guide to confirm it's the right match for your application. Installing a limited-slip differential is a job that typically requires some specialized tools and knowledge of drivetrain components, so you may want to consult with a professional mechanic to ensure it's installed correctly.