Eaton Detroit Truetrac Front Dana 44 Differential 30 Spline 1.31in Axle Shaft Dia 3.92 & Up Ratio Select 1969-2002 Chrysler/Dodge/Ford/Jeep (5.9L) 913A592

Fits select 1969-2002 Chrysler, Dodge, Ford, International, and Jeep models (5.9L).

The Eaton Detroit Truetrac is the industry-leading helical-gear limited-slip differential, designed to provide smooth, automatic traction on demand. This maintenance-free unit replaces standard open differentials in Dana 44 front axles, utilizing a gear-based design that eliminates the need for clutches, friction modifiers, or special lubrication. It operates as a standard differential under normal driving conditions, but automatically transfers torque to the wheel with the most grip when it detects slippage.

Engineered for durability and quiet operation, this Truetrac fits 30-spline axle shafts with a 1.31-inch diameter and is compatible with 3.92 and numerically higher gear ratios (such as 4.10, 4.56, and 4.88). Its automatic engagement works seamlessly in both forward and reverse, making it a versatile solution for off-road performance, towing, and daily driving.

• Manufacturer Part Number: 913A592
• Axle Application: Dana 44 (Front)
• Spline Count: 30
• Axle Shaft Diameter: 1.31 in
• Carrier Deck/Gear Ratio: 3.92 & Up
• Differential Type: Helical Gear Limited Slip (LSD)
• Maintenance: No friction modifiers required; compatible with standard gear oil
• Construction: High-strength steel gears for smooth, quiet operation