Eaton 913A589 Detroit Truetrac LSD for Dana 44 Front 30-Spline 3.73 & Down

Regular price: $679.99
Regular price: ~~$753.91~~
Sale price: $679.99

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Product Specification:

SKU:EAT913A589

MPN: 913A589

Weight: 25.8 lb

Inventory: 16

Type: Differentials

Vehicle Fitment

1967-1980 International Harvester 100/1100, 4x4 Half-Ton Pickup, Scout I and II, Traveler, Metro Van (Rear Dana 44, 3.73 & down)
1993-2000 Isuzu Rodeo (Rear Dana 44, 3.73 & down)
1977-1979 Ford Half-Ton Truck, Van, SUV (Rear Dana 44, 3.73 & down)
2007-2018 Jeep Cherokee, Grand Cherokee, Liberty, Post Office Truck, Scrambler, Wagoneer, Wrangler (Rear Dana 44 JK, non-Rubicon, all ratios)
1997-2006 Jeep Cherokee, Grand Cherokee, Liberty, Post Office Truck, Scrambler, Wagoneer, Wrangler (Rear Dana 44, 3.73 & down)
1971-2006 Jeep Cherokee, Grand Cherokee, Liberty, Post Office Truck, Scrambler, Wagoneer, Wrangler (Various Dana 44, 3.73 & down)

Fitment Notes

Designed for non-thick ring gears only. Eaton Specifications
Compatible with 30-spline axle shafts (~1.31-inch diameter)
Supports 8.5-inch ring gear size
Suitable for gear ratios of 3.73 and numerically lower (e.g., 3.54, 3.23)

Features

Helical-gear limited-slip differential (Detroit Truetrac) for smooth torque biasing
Maintenance-free operation; no friction modifiers required
Quiet engagement without the harshness of mechanical lockers
Ideal for off-road, towing, and street applications
Product weight: 24.39 lb

Specifications

Differential Type: Limited Slip (LSD)
Axle Location: Rear
Axle Description: Dana 44
Gear Spline Tooth Count: 30 EA
Axle Shaft Diameter: 1.31 in
Ring Gear Size: 8.5 in
Ring Gear Ratio: 3.73 & down
Product Weight: 24.39 lb

Included Components

1x Eaton Detroit Truetrac differential carrier assembly (913A589)
Installation instructions / Eaton guide

Product Description

The Eaton 913A589 Detroit Truetrac is a high-performance limited-slip differential designed for rear Dana 44 applications with 30-spline axle shafts and 3.73 or numerically lower gear ratios. Its helical-gear design provides smooth and automatic torque biasing, enhancing traction without the harsh engagement of mechanical lockers. Ideal for off-road enthusiasts, work trucks, and street vehicles, the Truetrac offers maintenance-free operation and quiet performance.