OS Giken Nissan Skyline FS5W30A Trans 3-Speed Close Ratio Gear Kit w/ 5th Gear and Reinf Input Shaft

The OS Giken close-ratio gear kit for the Nissan Skyline FS5W30A transmission is built around a reinforced input shaft, a critical component for handling increased power and stress. This kit is designed to bring the gear ratios closer together, which can significantly improve acceleration and responsiveness, especially when you're pushing the engine hard. By reducing the gaps between gears, the engine stays within its optimal power band more consistently during shifts, making it ideal for performance driving scenarios where every bit of acceleration counts.

This kit includes a full set of close-ratio gears, meticulously manufactured to OS Giken's high standards, along with a robust 5th gear. The reinforced input shaft is a key upgrade, providing the strength needed to withstand the demands of spirited driving and higher horsepower applications. OS Giken is well-known for its performance drivetrain components, and this gear set is a testament to their expertise in creating parts that enhance both the performance and durability of your transmission. Installing this kit changes the feel of the transmission, making it more direct and engaging.

When undertaking this kind of transmission upgrade, it's important to consider that this is a significant internal modification. You'll want to ensure you have the necessary tools and expertise for a proper rebuild, or consult with a professional mechanic experienced with performance transmissions. This kit is a substantial investment in your vehicle's drivetrain, aimed at unlocking a higher level of performance and driver engagement.