Detroit Locker 913A591 Truetrac Limited Slip Differential Dana 44 30 Spline

The Detroit Locker 913A591 Truetrac is a helical gear limited slip differential designed for Dana 44 front axle applications. This differential carrier uses a patented parallel-axis planetary helix gear design to automatically split torque between wheels, providing superior traction in varying conditions while maintaining smooth and quiet operation.

Key Features:

• 30-spline axle shaft design with 1.31-inch axle shaft diameter
• Fits Dana 44 front axles with 8.5-inch diameter ring gear
• Designed for 3.73 and numerically lower gear ratios
• Maintenance-free helical gear design with no wearable clutch packs
• Automatic torque transfer to wheel with better traction
• Iron construction for durability and strength
• Smooth, quiet operation that goes unnoticed during normal driving

Compatibility:

• Up to 1980 GM Truck/Van
• 1983-1997 Ford Truck
• 1984-2001 Mopar vehicles
• Front axle applications only

Important Note: Eaton recommends using petroleum/mineral-based GL-5 80W90 gear oil for all Truetrac differentials. Do not use synthetic gear oil or friction modifiers.

The Detroit Truetrac delivers proven performance for off-road, snow, and challenging terrain applications while remaining completely maintenance-free throughout its service life.