Eaton

Eaton Detroit Truetrac Differential 28 Spline 1.20in Axle Shaft Diameter 2.73 & Up Ratio Rear 8.5in - 912A556

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SKU:
EAT912A556
MPN:
912A556
Availability:
Regularly stocked product
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MSRP: $757.60
$696.99
— You save $60.61
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Description

How do I know if the Eaton Truetrac Differential will fit my vehicle?
Eaton Truetrac Differentials are designed as direct fit replacements; confirm your vehicle's specific axle model for guaranteed compatibility.

How is the Eaton Truetrac Differential installed?
Install the Eaton Truetrac Differential as a direct drop-in unit, leveraging its proven helical gear design for enhanced traction.

Eaton Truetrac Differentials offer optimized torque bias ratios for maximum acceleration and handling on your vehicle. Featuring a helical-gear style and smooth automatic operation, these limited-slip differentials provide seamless traction. Install with confidence knowing you're receiving precision-engineered performance for spirited driving and competition.

What Owners Say

Owners and enthusiasts consistently praise the Eaton Detroit Truetrac for delivering smooth, silent operation that eliminates the tire squealing and clunking associated with traditional lockers. Many highlight how it performs significantly better than an open differential while keeping passengers comfortable—no more panicking when traction systems engage. The helical gear design earns recognition for quality and maintenance-free reliability, making it particularly popular for towing and daily driving scenarios. The honest tradeoff is that it doesn't quite match the extreme performance of selectable or lunchbox lockers in serious off-road situations. Still, for drivers seeking the best balance between on-road manners and improved traction, 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
  • 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 seamless traction in all conditions, enhancing control and confidence.

Achieves instant power transfer for exhilarating acceleration and responsive handling.

Provides smooth, predictable engagement for a refined and predictable driving experience.

Transforms your vehicle's grip, allowing you to conquer challenging terrain with ease.

Who Is This For?

Daily Driving Comfort — 8/10
Smooth automatic operation, no special lubrication needed.

Street Performance — 9/10
Optimized torque bias for max acceleration and handling.

Track / Autocross — 9/10
Optimized torque bias for max acceleration and handling.

Racing Competition — 9/10
Optimized torque bias for max acceleration and handling.

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

Weekend Off-Roading — 7/10
Helical gear limited slip provides traction.

Frequently Asked Questions

How does the Eaton Detroit Truetrac differential improve daily driving comfort?

Seamless traction is delivered in all conditions, enhancing control and confidence during daily driving. With a high usage score of 8 for Daily Driving Comfort, the smooth automatic operation and lack of special lubrication needs ensure a refined experience. This differential transforms your vehicle's grip for predictable everyday performance.

What is the installation process for an Eaton Detroit Truetrac differential?

Installation is simplified as this differential is a direct drop-in replacement for your vehicle's existing unit. The 'drop-in' install type makes the process more accessible, aiming for a 7 out of 10 score for Easy DIY Install. Confirm vehicle fitment with your specific model for a straightforward upgrade.

How does the Truetrac enhance acceleration and handling performance?

Instant power transfer is achieved for exhilarating acceleration and responsive handling, scoring a 9 for Street Performance. The optimized torque bias ratios are specifically engineered to maximize acceleration and handling capabilities. Experience a significant upgrade in your vehicle's performance driving dynamics.

What kind of maintenance does the Eaton Detroit Truetrac differential require?

No special lubrication or friction modifiers are needed, contributing to its easy maintenance level. This simplified maintenance profile supports its suitability for daily driving comfort. Enjoy enhanced performance without the complexity of specialized fluid requirements.

Additional Resources

Official Eaton Product Page

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Additional Information

Clearance Item:
N
MPN:
912A556
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
Racing Competition:
9/10
Easy DIY Install:
7/10
Weekend Off-Roading:
7/10
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