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Eaton Detroit Trutrac Ford Sterling 10.25/10.5 Differential - 915A550

Upgrade your 94.5-2019 single rear wheel axle Ford Powerstroke with a Detroit Truetrac. This helical-gear style limited-slip differential maximizes wheel traction and enhances driving and handling characteristics.
Pricing: $819.99

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The Truetrac is the leading helical gear-type limited slip differential in the industry. Eaton has a proven track record of producing the most effective and dependable traction differentials in the world. The Truetrac operates as a standard (open) differential under normal driving conditions, allowing for unobtrusive operation. When a wheel encounters a loss of traction or the terrain changes, the helical-shaped gears mesh with increasing force, transferring torque to the high traction wheel until wheel spin is slowed or completely stopped. When the vehicle exits the low traction situation, the differential seamlessly resumes normal operation.


Operation of the Truetrac is smooth, quiet and automatic. The unit will engage without any driver action required. It also has no wearable parts and requires no maintenance, meaning less time in the garage and more time on the road. Used for Circle track, drag racing, street to strip, and towing


  • Improved traction relative to other rear wheel and four wheel drive vehicles
  • Maintenance free - requires no special lubrication or friction modifiers
  • Lifetime torque bias retention
  • Simple, proven design
  • Smooth and quiet operation
  • Limits wheel spin-out and improves handling
  • Performs open, until needed

"Whether your application ranges from a tow vehicle to a 9 second, quarter mile beast, Eaton has a differential that will withstand the abuse. Their Truetracs and Lockers provide optimum traction for your performance street machine without sacrificing driveability." Andy Warren 7-Time NMCA Champion.

A quality petroleum GL5 rated (mineral) based oil is recommended. Synthetic oils may also be used if desired per axle manufacturer’s recommendations. Friction modifiers should not be used as they will decrease overall performance.


Shipping Information

  • Item Requires Shipping
  • 48.0 lbs.
  • W11.0000” x H12.0000” x L11.0000”
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