Eaton Torque Control Products 912A642 Detroit Truetrac Helical Gear Limited Slip Differential

The Eaton Detroit Truetrac 912A642 is a helical gear-type limited slip differential designed to deliver 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 with no fluids or adjustments required
• Smooth and quiet performance during normal driving conditions
• Automatic torque biasing responds instantly to traction loss
• Works with both street and off-road applications
• Compatible with vehicle ABS and traction control systems
• Durable construction built for long-term reliability

The Detroit Truetrac operates by using helical side gears that separate under load, creating friction against the differential case. This design automatically transfers torque to the wheel with better traction, providing superior grip in challenging conditions without the harshness or chatter associated with clutch-type limited slips. The result is predictable, transparent performance that enhances vehicle control in rain, snow, mud, and uneven terrain while maintaining civilized street manners.

Ideal for trucks, SUVs, muscle cars, and performance vehicles where dependable traction is essential. The proven design offers an excellent balance of cost, performance, and longevity, making it a popular choice for both enthusiasts and professional applications.