Cusco LSD 6C1 FT Type RS 1-Way Limited Slip Differential

The Cusco LSD 6C1 FT is a Type RS 1-Way Limited Slip Differential engineered for enthusiasts seeking enhanced traction and driving performance. This precision-manufactured LSD utilizes an advanced coil spring design that delivers smooth, consistent engagement while minimizing power loss and drivetrain stress.

Type RS Design Advantages:

• RS coil spring activation system provides 50-70% lower initial torque compared to conventional cone plate LSDs
• Lower friction and better throttle response with reduced power loss
• Smoother engagement from non-operational to fully engaged state
• Minimal chattering during street driving conditions
• Springs maintain constant pressure on clutch plates, reducing torque loss over time

Technical Specifications:

• Configuration: 1-Way operation (activates under acceleration only)
• Ramp Angle Options: 35/0 degrees (default) or 45/0 degrees (optional)
• Initial Torque Range: 3-5 kg.m adjustable preload
• High-strength cold-forged chromium-molybdenum gears for exceptional durability
• Metal disc clutch plates provide stable performance across temperature ranges

Cusco Oil Through System: Features radially-cut clutch plate grooves and optimized oil passages that enhance lubrication circulation throughout the differential assembly, improving efficiency and extending component life.

1-Way Operation: This configuration is specially suited for front-wheel drive vehicles and AWD front axles. The LSD activates under acceleration to maximize traction and acts as an open differential when off-throttle, allowing smooth turn-in and reduced understeer characteristics. Ideal for street performance, autocross, and time attack applications.

The pressure rings can be customized by adding or subtracting RS springs for personalized lock-up characteristics. Manufactured in-house by Cusco's ISO 9001 certified facility in Japan, ensuring precision quality and reliability for both street and competition use.