Speedtek=Nissan Skyline RB25 RB26 Close Ratio Dog Engagement 5th & Reverse ONLY

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We have pioneered a groundbreaking development by introducing the first-of-its-kind dog engagement 5th and reverse gear for the Nissan Skyline/300ZX 5-speed transmission. This innovative gear system offers two distinct ratio options tailored to different driving needs. The first option is a short 5th gear designed for motorsport use. This shorter gear ratio optimizes acceleration and performance, making it ideal for racing applications where quick shifts and high RPMs are essential for competiti