The Eaton Detroit Truetrac Differential (Part #913A368) is a high-performance, helical-gear limited-slip differential engineered for Chrysler 9.25-inch rear axles with 31-spline shafts and 2.76–4.56 gear ratios. Trusted for its strength, reliability, and maintenance-free design, the Truetrac delivers smooth, automatic torque transfer to the wheel with the most traction—improving stability, cornering, and off-road capability.

Constructed with a robust all-gear design, the Truetrac eliminates clutches and friction plates, ensuring quiet, consistent performance over time. It’s the ideal choice for drivers who need dependable traction in both on-road and off-road applications—whether in muscle cars, trucks, or heavy-duty work vehicles.

eatures:

• Helical-gear limited-slip design for automatic torque transfer and superior traction

• Maintenance-free operation—no clutches, additives, or wearable components

• Durable all-gear construction designed for long service life

• Smooth, quiet performance with instant response to traction changes

• Compatible with Chrysler 9.25" axles and all 2.76–4.56 gear ratios

• Handles high torque loads for street, towing, and off-road performance

Specifications:

Fitment:
Designed for Chrysler 9.25-inch rear axles with 31-spline shafts, commonly used in Chrysler, Dodge, and Plymouth vehicles.

• 1974–2010: Chrysler, Dodge, Plymouth Passenger Cars – Rear (Chrysler C-Clip, 2.76–4.56)

• 1974–2010: Chrysler, Dodge, Plymouth Small & Half-Ton Trucks, Vans, Wagons – Rear (Chrysler C-Clip, 2.76–4.56)

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: