Eaton

Eaton Detroit Truetrac Differential 31 Spline 1.32in Axle Shaft Dia Front 8.8in/Reverse Rear 8.8in - 913A561

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SKU:
EAT913A561
MPN:
913A561
Availability:
Regularly stocked product
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MSRP: $815.20
$749.99
— You save $65.21
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Description

Will the Eaton Truetrac differential fit my vehicle?
Confirm your specific vehicle's fitment details before purchase to ensure proper integration of this Eaton Truetrac differential.

How difficult is it to install the Eaton Truetrac differential?
Professional installation is strongly recommended for the Eaton Truetrac differential to achieve optimal performance and durability.

Eaton Truetrac Differentials deliver optimized torque bias ratios, achieving a 9/9 score for street performance and track/autocross. Its helical-gear style, limited-slip design ensures smooth, maintenance-free operation. Trust Eaton's engineering for maximum acceleration and confident handling in your vehicle's differential.

What Owners Say

Owners and enthusiasts consistently praise the Eaton Detroit Truetrac for delivering smooth, silent operation that eliminates the tire squealing and abrupt engagement common with traditional lockers. Many highlight its quality construction and maintenance-free helical gear design, noting it performs significantly better than open diffs while remaining forgiving on-road and compatible with towing and trailers. The consensus is clear: it offers the traction benefits of a locker without the drawbacks, though some acknowledge it doesn't quite match the extreme performance of selectable or lunchbox lockers in hardcore off-road situations. For drivers seeking a balanced, reliable differential upgrade, the Truetrac has earned a strong reputation across truck and performance communities.

Key Features

  • helical-gear style
  • limited-slip differential
  • smooth automatic operation in forward and reverse
  • maintenance-free
  • Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
  • Helical Gear Limited Slip Differential

Why Choose the EAT Detroit Truetrac Diffs

Delivers seamless traction in all conditions, enhancing stability and control.

Achieves instant power transfer for exhilarating acceleration and confident cornering.

Provides a smooth, predictable driving experience, eliminating wheel hop and chatter.

Transforms your vehicle's handling, making every drive more engaging and responsive.

Who Is This For?

Daily Driving Comfort — 8/10
Smooth automatic operation in forward and reverse.

Street Performance — 9/10
Optimized torque bias ratios deliver max acceleration.

Track / Autocross — 9/10
Optimized torque bias ratios deliver max handling.

Racing Competition — 9/10
Optimized torque bias ratios deliver max acceleration.

Weekend Off-Roading — 7/10
Limited-slip differential aids traction in varied terrain.

High Speed Desert Running — 8/10
Optimized torque bias ratios for acceleration and handling.

Additional Resources

Official Eaton Product Page

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Additional Information

Clearance Item:
N
MPN:
913A561
Proposition 65:
N
Case Lot Quantity:
1
Category:
Drivetrain>Differentials
Product Level:
Mid Range
Daily Driving Comfort:
8/10
Street Performance:
9/10
Track / Autocross:
9/10
Racing Competition:
9/10
Weekend Off-Roading:
7/10
High Speed Desert Running:
8/10
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