SKU: PEMCSTT35-370
MPN: CSTT35-370
The 9in Center Section Eaton Tru Trac 3.70 Ratio by PEM is designed for street and track-focused vehicles that require a reliable limited-slip differential. This assembly is compatible with nine-inch rear housings commonly found in Ford Mustangs, Torinos, and various classic and modern platforms, providing a balance between daily driving comfort and performance capability.
The Eaton Tru Trac utilizes a cam-and-pawl design with spring-loaded internals that automatically adjust lock-up based on load, eliminating the need for external electronic controls or maintenance-heavy clutch packs. With a 3.70:1 gear ratio, this differential offers responsive acceleration suitable for street performance while maintaining reasonable engine RPM at highway speeds. Its friction-based cam design minimizes noise compared to traditional clutch-pack limited-slip units.
Enthusiasts and mechanics prefer the Eaton Tru Trac for rebuilding or upgrading nine-inch housings, as it provides load-sensitive torque bias that enhances performance during acceleration and cornering. This makes it an excellent choice for both daily commuting and spirited driving, ensuring reliability without the harshness of a welded spool or locker.
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