SZM Input Shaft 300M (Heavy Duty) | Nissan GT-R R35 2007+

The SZM 300M Heavy Duty Input Shaft is the definitive drivetrain solution for VR38DETT builds pushing the absolute limits of the GR6 transaxle. While standard 4320 alloy steel components are suitable for mid-tier performance, this 300M variant is engineered for ultra-high-torque environments

Engineering for Extreme Torque Loads

On the R35 platform, the input shaft is a primary failure point when transitioning to 1,500+ WHP. The SZM Heavy Duty shaft utilizes 300M Alloy Steel, a vacuum-melted low-alloy steel known for its high silicon content. This material provides superior transverse toughness and fatigue resistance compared to standard alloys, preventing the "twist" and shear failures common during 2,000+ HP launches.

• Advanced Metallurgy: 300M offers a tensile strength of approximately 285,000 psi, providing the structural headroom required for professional drag and mile racing.

• Precision CNC Profiling: Each shaft is CNC-machined to exacting tolerances to ensure perfect spline engagement with the GR6 transmission, reducing drivetrain harmonics at high RPM.