Eaton

Eaton Detroit Truetrac Differential 30 Spline 1.31in Axle Shaft Dia 3.92 & Up Ratio Rear Dana 44 - 913A590

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SKU:
EAT913A590
MPN:
913A590
Availability:
Regularly stocked product
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MSRP: $780.43
$717.99
— You save $62.44
Current Stock: 6

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Description

How does the Truetrac differential work?
The Eaton Truetrac differential utilizes a patented helical-gear design to automatically distribute torque, enhancing traction without requiring driver input.

Is the Truetrac differential maintenance-free?
Yes, the Eaton Truetrac differential is maintenance-free, eliminating the need for special fluids or clutch packs often associated with other limited-slip differentials.

Eaton Detroit Truetrac Differentials offer optimized torque bias ratios for maximum acceleration and handling, scoring a 9 for street performance. Its maintenance-free helical-gear style ensures smooth, automatic operation. Trust this drop-in differential for relentless traction and a confident driving experience.

What Owners Say

Owners and enthusiasts consistently praise the Eaton Detroit Truetrac for delivering smooth, predictable performance that eliminates the jarring engagement and tire squealing associated with traditional lockers. The helical gear design earns recognition for being silent and maintenance-free, making it popular for both daily driving and towing applications. Users appreciate how it improves traction over open differentials without the drawbacks of lunchbox lockers—no more panicking passengers during tight turns. The trade-off is that it doesn't perform quite as aggressively as selectable or mechanical lockers in extreme situations. Installation professionals frequently recommend Truetrac units for their proven quality and reliability, establishing them as a trusted solution for street-driven trucks needing capable all-around performance.

Key Features

  • helical-gear style, limited-slip differential
  • Maintenance-free
  • smooth, automatic operation in forward and reverse
  • Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
  • No Special Lubrication Or Friction Modifiers Needed
  • Helical Gear Limited Slip Differential

Why Choose the EAT Detroit Truetrac Diffs

Delivers relentless traction for confident acceleration and cornering.

Provides seamless power transfer for a smooth, predictable driving feel.

Achieves maximum grip without the hassle of special fluids.

Transforms your vehicle's handling for a more engaging drive.

Who Is This For?

Daily Driving Comfort — 8/10
Smooth, automatic operation enhances daily driving experience.

Street Performance — 9/10
Optimized torque bias ratios improve acceleration and handling.

Track / Autocross — 9/10
Optimized torque bias ratios improve acceleration and handling.

Drag Racing — 8/10
Optimized torque bias ratios deliver maximum acceleration.

Easy DIY Install — 7/10
Drop-in install type simplifies installation process.

Racing Competition — 9/10
Optimized torque bias ratios improve acceleration and handling.

Additional Resources

Official Eaton Product Page

Browse More: Shop All Differentials — Drivetrain

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Additional Information

Clearance Item:
N
MPN:
913A590
Proposition 65:
N
Case Lot Quantity:
1
Category:
Drivetrain>Differentials
Install Type:
Drop-In
Product Level:
Mid Range
Daily Driving Comfort:
8/10
Street Performance:
9/10
Track / Autocross:
9/10
Drag Racing:
8/10
Easy DIY Install:
7/10
Racing Competition:
9/10
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