ACT Mod-Twin 225 HD Sprung Street Clutch Kit for 1999-2002 Nissan Skyline GT-R (R34) T1SS-N04

Fits 1999-2002 Nissan Skyline GT-R (R34).

The ACT T1SS-N04 Mod-Twin 225 HD Sprung Street Kit is engineered specifically for high-horsepower, all-wheel-drive street applications. This modular twin-disc system achieves high torque capacity by doubling the available organic friction surfaces while maintaining the pedal feel and engagement quality necessary for street driving. The heart of the system is the ultra-durable Mono-Drive sprung hub, which reduces driveline shock and protects the gearbox input shaft from torsional vibrations.

• Exclusive four-stage heat-treated diaphragm spring provides a consistent, light pedal feel throughout the clutch life.
• Steel-backed organic friction plates offer a stable friction coefficient and high heat capacity for reliable performance.
• CNC-machined and dynamically balanced flywheel ensures smooth, vibration-free operation.
• Modular design allows the kit to be fully rebuildable with individual components available separately.
• Includes patented Monoloc Collar to prevent the release bearing from separating under high-load conditions.

Kit Includes: Dynamically balanced flywheel, pressure plate cover, diaphragm spring, organic friction plates, sprung Mono-Drive hub assembly, floater, Monoloc collar, release bearing, alignment tool, and pilot bearing.