The Detroit Truetrac is a helical-gear style limited-slip
differential that maximizes wheel traction and enhances
driving and handling characteristics.
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.
• Smooth and automatic engagement - no driver action needed
• Maintenance free, more time on the road
• Helical-style side and pinion gears
• Limited-slip operation
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.
Compatible Make / Model
Ford E-250 Econoline (1985-2002)
Ford E-350 Econoline (1985-1998)
Ford F-150 (2000-2013)
Ford E-350 Super Duty (2000-2015)
Ford E-450 Super Duty (2003-2015)
Ford F-350 (1985-1997)
Ford E-550 Econoline Super Duty (2002-2002)
Ford F-250 (1985-1999)
Ford Excursion (2000-2005)
Ford E-250 (2003-2015)
Ford E-450 Econoline Super Duty (2000-2002)
Ford E-550 Super Duty (2003-2003)
Ford F-250 Super Duty (1999-2015)
Ford F-350 Super Duty (1999-2015)
Ford E-350 Econoline Club Wagon (1999-1999)
Compatible Differentials
Ford 10.25"
Ford 10.5", '11 & up.
Ford 10.5", '07 & older
Ford 10.5", '08 '10
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