Type-MZ Spec-F 1.5-Way/2-Way Rear Limited-Slip Differential

The Cusco LSD 428 ET, a Type-MZ Spec-F rear limited-slip differential, is engineered for enhanced traction and control in performance driving scenarios. Designed for Mazda MX-5 Miata Roadster models (NCEC, 2005-2008 and NCEC RS, 2008-2015 with LF-VE engines), this differential is compatible with both manual and automatic transmissions. The Spec-F designation highlights its use of special flat friction clutch plates, which provide a milder initial engagement during both acceleration and deceleration. This characteristic is particularly beneficial for rear-wheel-drive setups in circuit situations and for vehicles with lower horsepower, as it helps minimize power loss. The Type-MZ series, known for its 24-plate assembly, offers superior torque distribution during aggressive cornering and a lower response rate, contributing to drivetrain durability and precise control during drifting or sharp turns. This limited-slip differential utilizes a cone spring system where activation pressure opposes the direction of initial torque. The Type-MZ variant boasts the highest initial torque rating among Cusco LSD models, achieved through a high-pressure cone spring that engages the clutch pack linearly. The pressure ring features dual profiles, allowing for a switch between 1-way, 1.5-way, and 2-way operation without additional components. Cusco's exclusive radially cut clutch plate grooves facilitate instant oil movement for improved efficiency and longevity, complemented by a polished pressure ring contact surface and an Oil Through System when used with Cusco LSD Oil.