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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


  • 24 Products
    Dana 44

    363-913A592
    Detroit Truetrac Differential
  • Dana 44
  • Up to 1980 GM Truck/Van
  • 1983-97 Ford Truck
  • 1984-2001 MOPAR
  • 30-Spline Axles
  • 8.5" Diameter Ring Gear
  • Fits 3.92 & Up Gear Ratios
  • Front Only
  • $433.99
    Ships
    Ford 7.5"

    363-912A316
    Detroit Truetrac Differential
  • Ford 7.5"
  • 1983-2009 Ford Car/Truck
  • 28-Spline Axles
  • 7.5" Diameter Ring Gear
  • Fits All Gear Ratios
  • $479.99
    Ships
    Ford 8"

    363-912A616
    Detroit Truetrac Differential
  • Up to 1978 Ford Car/Truck
  • Ford 8"
  • 28-Spline Axles
  • 8" Diameter Ring Gear
  • Fits 3.25" & Up Gear Ratios
  • $499.99
    Ships
    Ford 8.8"

    363-912A562
    Detroit Truetrac Differential
  • Ford 8.8"
  • 1983-2011 Ford Car/Truck
  • 28-Spline Axles
  • 8.8" Diameter Ring Gear
  • Fits All Gear Ratios
  • $479.99
    Ships

    363-913A561
    Detroit Truetrac Differential
  • Ford 8.8"
  • 1987-2011 Ford Car/Truck
  • 31-Spline Axles
  • 8.8'' Diameter Ring Gear
  • Fits All Gear Ratios
  • $489.99
    Ships
    Ford 9"

    363-912A587
    Detroit Truetrac Differential
  • Ford 9"
  • Up to 1979 Ford Car
  • 1957-87 Ford Truck
  • 28-Spline Axles
  • 9" Diameter Ring Gear
  • Fits 3.25 & Up Gear Ratios
  • $464.99
    Ships
    Ford and Jeep Dana 44

    363-913A589
    Detroit Truetrac Differential
  • Ford and Jeep Dana 44
  • 1977-79 Ford Truck
  • 1969-2012 Jeep
  • 30-Spline Axles
  • 8.5" Diameter Ring Gear
  • Fits 3.73 & Lower Gear Ratios
  • $423.99
    Ships

    363-913A590
    Detroit Truetrac Differential
  • Ford and Jeep Dana 44
  • 1977-79 Ford Truck
  • 1969-2009 Jeep
  • 30-Spline Axles
  • 8.5" Diameter Ring Gear
  • Fits 3.92 & Up Gear Ratios
  • $433.99
    Ships
    GM 10-Bolt

    363-911A319
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1975-89 GM Car
  • 1982-2009 GM Truck
  • 26-Spline Axles
  • 7.5'' Diameter Ring Gear
  • Fits 3.23 & Up Gear Ratios
  • $386.99
    Ships

    363-911A415
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1975-89 GM Car
  • 1982-2009 GM Truck
  • 26-Spline Axles
  • 7.5'' Diameter Ring Gear
  • Fits 3.08 & Lower Gear Ratios
  • $397.99
    Ships

    363-912A317
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1988-2005 GM Car
  • 1988-2009 GM Truck
  • 28-Spline Axles
  • 7.5''/7.6'' Diameter Ring Gear
  • Fits 3.23 & Up Gear Ratios
  • $392.99
    Ships

    363-912A556
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1971-89 GM Car
  • 1972-89 GM Truck
  • 28-Spline Axles
  • 8.5'' Diameter Ring Gear
  • Fits 2.73 & Up Gear Ratios
  • Rear Only
  • $413.99
    Ships

    363-912A557
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1977-88 GM Car/Truck
  • 28-Spline Axles
  • 8.5'' Diameter Ring Gear
  • Fits 2.73-5.13 Gear Ratios
  • Front Only
  • $438.99
    Ships

    363-913A481
    Detroit Truetrac Differential
  • GM 10-Bolt
  • 1988-96 GM Car
  • 1988-2009 GM Truck
  • 30-Spline Axles
  • 8.5''/8.6'' Diameter Ring Gear
  • Fits 2.73 & Up Gear Ratios
  • $413.99
    Ships
    GM 12-Bolt

    363-913A315
    Detroit Truetrac Differential
  • GM 12-Bolt
  • Up to 1982 GM Truck
  • 30-Spline Axles
  • 8.875" Diameter Ring Gear
  • Fits 3.73 & Up Gear Ratios
  • $464.99
    Ships

    363-913A555
    Detroit Truetrac Differential
  • GM 12-Bolt
  • 1964-72 GM Car
  • 30-Spline Axles
  • 8.875'' Diameter Ring Gear
  • Fits 3.08-3.90 Gear Ratios
  • $433.99
    Ships

    363-913A555-R
    Detroit Truetrac Differential
  • GM 12-Bolt
  • 1964-72 GM Car
  • 30-Spline Axles
  • 8.875'' Diameter Ring Gear
  • Fits 3.08-3.90 Gear Ratios
  • Remanufactured
  • Was: $429.99
    Now: $411.99
    Ships

    363-914A575
    Detroit Truetrac Differential
  • GM 12-Bolt
  • 1964-72 GM Car
  • 33-Spline Axles
  • 8.875" Diameter Ring Gear
  • Fits 4.10 & Up Gear Ratios
  • $423.99
    Ships

    363-914A576
    Detroit Truetrac Differential
  • GM 12-Bolt
  • 1964-72 GM Car
  • 33-Spline Axles
  • 8.875" Diameter Ring Gear
  • Fits 3.08-390 Gear Ratios
  • $479.99
    Ships
    Jeep Dana 30

    363-912A585
    Detroit Truetrac Differential
  • Jeep Dana 30
  • 1971-2011 Jeep
  • 27-Spline Axles
  • Fits 3.73 & Up Gear Ratios
  • $397.99
    Ships
    Jeep Dana 35

    363-912A569
    Detroit Truetrac Differential
  • Jeep Dana 35
  • 1984-2009 Jeep
  • 27-Spline Axles
  • 7.56" Diameter Ring Gear
  • Fits 3.54 & Up Gear Ratios
  • $402.99
    Ships
    Toyota 8"

    363-913A610
    Detroit Truetrac Differential
  • Toyota 8"
  • 1986-2009 Toyota Truck
  • 30-Spline Axles
  • 8" Diameter Ring Gear (4 Pinion) (4x4 Turbo/Gas/Diesel)
  • Fits All Gear Ratios
  • $464.99
    Ships
    Toyota 8.4"

    363-913A541
    Detroit Truetrac Differential
  • Toyota 8.4"
  • 1995-2005 Toyota Truck
  • 30-Spline Axles
  • 8.4" Diameter Ring Gear
  • Fits 3.54-5.29 Gear Ratios
  • $469.99
    Ships
    Volvo Dana 30

    363-912A588
    Detroit Truetrac Differential
  • Volvo Dana 30
  • Volvo RWD
  • 27-Spline Axles
  • 7.2" Diameter Ring Gear
  • Fits 3.73 & Up Gear Ratios
  • $464.99
    Ships

    24 Products