The Detroit Truetrac, manufactured by Tractech, is the aftermarket?s leading gear type limited slip differential. The patented design of parallel axis planetary helical gears provide a quiet, automatic splitting of torque. Power transfer goes literally unnoticed by the driver - even in front wheel drive axles. The Detroit Truetrac performs like an open differential under normal driving conditions and automatically transfers torque to the wheel with better traction when ground conditions warrant. The limited slip responds instantly to torque feedback, anytime, at any speed.


Detroit Truetrac?s are engineered for front and rear axles, semi floating (C-clip axles) and transfer cases. Proven design, low cost and effective performance all make the Detroit Truetrac limited slip the choice of professionals and traction enthusiasts everywhere.


Great for off-road, street and strip.

The Detroit Truetrac delivers the traction necessary for drag racing and off-road terrain while not adversely affecting handling on the street.