The Eaton Detroit Truetrac Differential (Part #917A730) is a high-performance, helical-gear limited-slip differential built for Chrysler 9.25-inch axles with 31-spline shafts. Designed for superior traction, durability, and smooth engagement, the Truetrac operates automatically without clutches or friction plates—providing a quiet, maintenance-free solution for demanding drivers.

Whether used in street performance builds, towing vehicles, or extreme off-road rigs, the Truetrac distributes torque to the wheel with the most grip, maximizing control and stability under varying traction conditions. Its proven all-gear design ensures consistent performance across all gear ratios, making it ideal for versatile applications from the highway to the trail.

Features:

• Helical-gear, torque-biasing limited-slip differential

• Automatic operation—no switches, air lines, or clutch packs required

• Maintenance-free, all-gear construction for long-term durability

• Enhances traction and handling in wet, icy, or uneven terrain

• Compatible with all gear ratios for Chrysler 9.25" axles

• Suitable for both performance and off-road applications

Specifications

Fitment:
Compatible with Chrysler 9.25-inch axles featuring 31-spline shafts, used in a wide range of Dodge and Ram trucks, SUVs, and performance vehicles.

Ideal Usage:

• Off-Road: Rock Crawl, Light Trail, Sand Sports, Extreme Off-Road, Work Truck / Towing

• On Road: Street & Muscle, Circle Track, Drag Racing, Restoration, Work Truck / Towing

This Part Fits: