Eaton Torque Control Products 913A591 Detroit Truetrac Helical Gear Limited Slip Differential

The Eaton Detroit Truetrac 913A591 is a helical gear-type limited slip differential that delivers reliable traction without the maintenance requirements of traditional clutch-type differentials. As the first helical gear differential introduced to the automotive aftermarket under the Eaton brand, the Truetrac has established itself as the industry leader in its category.

Key Features:

• Helical gear design eliminates wearable clutch packs and friction plates
• Maintenance-free operation for the life of the differential
• Smooth, quiet performance with no chattering or binding
• Automatic torque biasing responds instantly to traction conditions
• Works seamlessly with ABS and traction control systems
• Proven durability in street, towing, and off-road applications

The Detroit Truetrac uses a sophisticated helical gear train to transfer torque automatically to the wheel with better traction. Unlike open differentials that send power to the wheel with least resistance, or aggressive lockers that can be harsh on drivetrain components, the Truetrac provides balanced power distribution that maximizes traction while maintaining smooth operation. This makes it an ideal upgrade for trucks, SUVs, and performance vehicles that demand dependable traction without compromising daily drivability.

Installation fits into the existing carrier housing, making it a direct replacement for the factory differential. The unit requires no special additives or maintenance procedures—simply install and drive with confidence knowing you have superior traction when you need it most.