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

Engineered for high-performance applications, the OS Giken 3-Speed Close Ratio Gear Kit with 5th Gear is designed to maximize engine potential and drivetrain reliability for Nissan Skyline models equipped with the FS5W30A transmission. This kit features precision-forged, helical-cut gears that deliver exceptional strength and durability, while maintaining smooth and quiet operation suitable for both street and track use.

  • 3-speed close ratio gear set with reinforced 5th gear
  • Forged high-strength materials for maximum durability
  • Helical-cut gears for reduced noise and vibration
  • Designed for Nissan Skyline FS5W30A transmission
  • Optimized for racing and high-output engines

This product has not yet been assigned to any vehicle. We are working to ensure that this changes as soon as possible. Please contact us if you have any questions.

Starting in the early 1960's, Masaharu Okazaki set out on a mission to build high-performance Japanese race engines to compete with the championship-winning European offerings of the time. Armed only with a pure passion for motorsports and an innate ability to absorb information, he basically took things apart in his garage, figured out how they work, and designed improvements to increase performance. A self-educated man, he originally began working on motorcycles and eventually moved on to parts development for 4-wheel automobiles. Mr. Okazaki founded his company, OS Giken, in the early 1970's with strength, durability, and the pursuit of high performance in mind; these goals for parts development remain true today and OS Giken has established itself in the upper-echelon for designing and manufacturing high quality, high performance, and supremely durable parts. Officially founded in 1973, the company headquarters and factory are located in Okayama, Japan. All OS Giken parts are 100% manufactured and assembled in Japan, under very strict quality-control guidelines.
Contact
OS Giken
464 Okimoto
702-8001 Naka Ward
Japan

https://osgikenusa.com/
Responsible person
Streetstylez Ltd. & Co. KG
Heinrich-Lorenz-Str. 2-4
09120 Chemnitz
Germany

info@streetstylez.eu
www.streetstylez.eu
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