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Detroit Truetrac Differentials


Detroit TrueTrac
Detroit Truetrac Differentials

The Detroit Truetrac is a helical-gear style performance differential that maximizes wheel traction and enhances driving and handling characteristics.

The Truetrac operates as a standard or open differential under normal driving conditions, allowing one wheel to spin faster or slower as necessary. When a wheel encounters a loss of traction or the terrain changes, the gear separation forces take effect and transfer torque to the high-traction wheel. The helical-shaped gears mesh with increasing force until wheel spin is slowed or completely stopped. When the vehicle exits the low traction situation, the differential resumes normal operation.

Operation of the Truetrac is smooth, quiet and automatic. The unit will engage without any driver knowledge or action required. It also has no wearable parts and requires no maintenance, meaning less time in the garage and more on the road.

Features:
  • Helical-style pinion gears
  • Limited-slip operation
  • Smooth and automatic engagement - no driver action needed
  • Parts are maintenance free meaning more time on the road
  • Validated performance and durability


  • 7 Products
    Dana 60
    Detroit TrueTrac 913A389 -
    363-913A389
    Detroit Truetrac Differential
  • Dana 60
  • Up to 1974 GM Truck/Van
  • 1972-2002 MOPAR
  • 30-Spline Axles
  • 9.75" Diameter Ring Gear
  • Fits 4.10 & Lower Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $856.99
    Order Today Ships 02/19/16
    Detroit TrueTrac 913A390 -
    363-913A390
    Detroit Truetrac Differential
  • Dana 60
  • Up to 1974 GM Truck/Van
  • 1972-2002 MOPAR
  • 30-Spline Axles
  • 9.75" Diameter Ring Gear
  • Fits 4.56 & Up Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $760.99
    Order Today Ships 02/19/16
    Dana 60HD
    Detroit TrueTrac 915A386 -
    363-915A386
    Detroit Truetrac Differential
  • Dana 60HD
  • 1973-91 GM Truck/Van
  • 35-Spline Axles
  • 9.75" Ring Gear
  • Fits 4.56 & Up Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $760.99
    Order Today Ships 02/19/16
    Detroit TrueTrac 915A387 -
    363-915A387
    Detroit Truetrac Differential
  • Dana 60HD
  • 1977-87 GM Truck/Van
  • 1971-93 MOPAR
  • 35-Spline Axles
  • 9.75" Diameter Ring Gear
  • Fits 4.10 & Lower Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $760.99
    Order Today Ships 02/19/16
    Detroit TrueTrac 915A388 -
    363-915A388
    Detroit Truetrac Differential
  • Dana 60HD
  • 1977-87 GM Truck/Van
  • 1971-93 MOPAR
  • 35-Spline Axles
  • 9.75" Diameter Ring Gear
  • Fits 4.56 & Up Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $760.99
    Order Today Ships 02/19/16
    Ford 9"
    Detroit TrueTrac 914A690 -
    363-914A690
    Detroit Truetrac Differential
  • Ford 9"
  • 35-Spline Axles
  • 9" Diameter Ring Gear
  • Fits 3.25 & Up Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $742.99
    Ships
    GM AAM
    Detroit TrueTrac 915A568 -
    363-915A568
    Detroit Truetrac Differential
  • GM AAM
  • 2001-11 GM Truck
  • 30-Spline Axles
  • 11.5" Diameter Ring Gear
  • Fits All Gear Ratios
  • FREE
    SHIPPING
    & HANDLING!
    $873.99
    Order Today Ships 02/24/16

    7 Products