OS Giken NS201-FB6 Center Alignment Tool for Nissan Skyline GT-R RB26

Vehicle Fitment

• 1989-1994 Nissan Skyline GT-R (R32), RB26DETT, 26-spline gearbox
• 1995-1998 Nissan Skyline GT-R (R33), RB26DETT, 26-spline gearbox
• 1999-2002 Nissan Skyline GT-R (R34), RB26DETT, 26-spline gearbox

Fitment Notes

• This is a clutch installation accessory, not a standalone clutch or clutch kit
• Specifically designed for the 26-spline (OS-88) gearbox configuration used across RB26DETT-powered R32/R33/R34 GT-R models
• Recommended accessory for OS Giken TS, R, and multi-plate clutch kits built for the RB26 26-spline platform

Features

• Forged billet construction, eliminating the slack common with plastic center alignment tools
• Replicates the transmission input shaft profile for precise, accurate centering of clutch discs
• Prevents disc sag during installation, especially important with multi-plate clutch assemblies
• Helps avoid transmission hang-up during reinstallation, which can otherwise place damaging leverage on clutch plates
• Reduces risk of warped clutch discs caused by misalignment during install
• Suitable for use as a professional service shop tool

Specifications

• Tool type: Center/clutch alignment tool
• Material: Forged billet
• Spline configuration: 26-spline (OS-88)
• Application: OS Giken clutch kits for Nissan RB26DETT / 26-spline gearbox
• Weight: 2.0 lbs

Included Components

• 1x OS Giken Forged Billet Center Alignment Tool (NS201-FB6)

Product Description

The OS Giken NS201-FB6 is a forged billet center alignment tool purpose-built for installing OS Giken clutch kits on RB26DETT-powered Nissan Skyline GT-R models spanning the R32, R33, and R34 chassis, all sharing the same 26-spline (OS-88) gearbox configuration. Because OS Giken clutches are manufactured to very tight tolerances, a precise alignment tool is critical to a clean installation - this billet tool replicates the transmission input shaft, eliminating the play and slack commonly found with the plastic alignment tools included in many clutch kits.

During installation, the tool holds the clutch discs in tight, accurate alignment with the pilot bushing or bearing, preventing disc sag that can otherwise make transmission reinstallation difficult. This is especially critical with the multi-plate clutch setups common on heavily built RB26 platforms, where even small misalignment can cause the transmission to hang up during installation - a problem that places damaging leverage on the clutch plates and can result in warped discs requiring a redo of the entire install.

This tool is recommended across OS Giken's TS, R, and multi-plate clutch lineups built for the RB26 26-spline gearbox, making it a smart addition for any R32, R33, or R34 GT-R owner installing a new OS Giken clutch - as well as a practical shop tool for professional installers regularly working on these platforms.