Eaton Detroit Truetrac Helical Gear Limited Slip Differential

1997–2011 Dodge, Jeep, Chrysler Models

912A553

Overview:

The Eaton Detroit Truetrac is a premium helical-gear style limited slip differential designed to maximize traction and improve vehicle handling across a wide range of driving conditions. Engineered for durability and smooth operation, this maintenance-free differential automatically balances torque between wheels without the need for special lubrication or friction modifiers. Ideal for enthusiasts and daily drivers alike, the Truetrac enhances acceleration and cornering performance while providing reliable traction in both forward and reverse directions.

Compatible with many Dodge, Jeep, and Chrysler models from 1997 through 2011, the Detroit Truetrac is a versatile upgrade that delivers improved control and confidence on the road or off-road. Whether you’re tackling challenging terrain or seeking better performance on pavement, this differential offers a seamless blend of strength and refinement.

Key Features:

Designed to optimize traction and handling, the Detroit Truetrac incorporates advanced technology and robust construction to meet the demands of a variety of vehicles and driving styles.

• Helical gear limited slip design for smooth, automatic torque biasing
• Maintenance-free operation with no special lubricants or friction modifiers required
• Durable construction ensures long-lasting performance and quiet operation
• Works effectively in both forward and reverse directions for versatile traction
• Optimized torque bias ratios deliver maximum acceleration and improved handling
• Fits rear 8.375-inch differentials with 29 spline axle shafts and 1.21-inch axle shaft diameter
• Compatible with ring gear pinion ratios of 2.73 and higher
• Ideal for a wide range of Dodge, Jeep, and Chrysler vehicles from 1997 to 2011

Construction & Design:

The Detroit Truetrac is engineered with precision-machined helical gears that provide consistent torque transfer without the chatter or noise associated with clutch-type limited slip differentials. Its robust internal components are crafted from high-quality materials to withstand demanding driving conditions and deliver reliable traction over the long term. The design eliminates the need for periodic maintenance, making it a practical choice for both performance enthusiasts and everyday drivers.

Its compact and efficient construction fits directly into the factory differential housing, maintaining OEM fitment and clearance. This ensures a straightforward installation process without the need for extensive modifications.

Installation & Fitment:

The Eaton Detroit Truetrac is designed as a direct replacement for the factory limited slip or open differentials in compatible Dodge, Jeep, and Chrysler models. Installation typically requires standard differential service procedures and can be performed by experienced technicians or knowledgeable enthusiasts. No special adjustments or additional components are necessary, and the differential works seamlessly with existing drivetrain setups.

Fitment covers a broad range of vehicles including Dodge Dakota (1997–2004), Dodge Ram 1500 (1997–2004), Dodge Ram 2500 (1997–2001), Dodge Viper (1997–2009), Jeep Grand Cherokee (1997–2011), Jeep Wrangler (1997–2011), Dodge Durango (1998–2004), Dodge Neon SRT-4 (2003–2005), Dodge Viper SRT-10 (2003–2009), Dodge Ram 1500 SRT-10 (2004), Chrysler 300 (2005–2009), Dodge Magnum (2005–2008), Dodge Charger (2006–2009), and Dodge Challenger (2008–2009).

What's Included:

• Eaton Detroit Truetrac Helical Gear Limited Slip Differential (29 spline, rear 8.375-inch)
• Installation instructions
• Warranty information

Ideal For:

This differential is perfect for drivers seeking enhanced traction and handling without the maintenance demands of traditional clutch-type limited slip differentials. It suits off-road enthusiasts, performance drivers, and daily commuters who want improved control in slippery or challenging conditions. The Detroit Truetrac is especially beneficial for vehicles used in towing, hauling, or spirited driving where consistent power delivery to both rear wheels is critical.

Eaton produces well-known performance drivetrain solutions—especially differentials and supporting install components—designed to help put power down more effectively. Eaton is also recognized for performance automotive supercharger technology (including TVS systems) used in various high-performance applications where consistent airflow and traction are critical.