Eaton Torque Control Products 915A385 Detroit Truetrac Helical Gear Limited Slip Differential

The Eaton Detroit Truetrac 915A385 is a helical gear-type limited slip differential that was the first of its kind introduced to the automotive aftermarket. This proven design uses helical gears instead of traditional clutch packs, providing reliable traction without the need for maintenance or replacement of wearable components.

Key Features:

• Helical gear design eliminates clutch packs and other wearable parts
• Maintenance-free operation for long-term reliability
• Smooth and quiet performance compared to traditional limited slip differentials
• Automatically distributes torque to the wheel with better traction
• No special additives or friction modifiers required
• Ideal for daily driving, towing, and light off-road use

The Detroit Truetrac operates by using helical side gears and pinion gears that separate under load, creating friction against the differential case. This allows torque to be transferred to the wheel with the most traction automatically. Unlike clutch-type limited slip differentials, the Truetrac requires no break-in period and maintains consistent performance throughout its service life. The gear-on-gear design provides smooth, chatter-free operation while delivering superior traction in challenging conditions.