{"product_id":"os-giken-ns201-fb6-alignment-tool-nissan-skyline-gt-r","title":"OS Giken Nissan Skyline RB26DETT Clutch Alignment Tool","description":"\u003ch4\u003ePrecision Clutch Alignment for the Legendary RB26DETT\u003c\/h4\u003e\n\u003cp\u003eThe OS Giken NS201-FB6 is a forged billet center alignment tool built specifically for the 26 tooth spline gearbox used behind the Nissan RB26\/RB25 engine family. Every Nissan Skyline GT-R that left the factory with the iconic RB26DETT twin turbo inline six shares this same 26 spline input shaft pattern, and this tool is machined to match it exactly. Whether you are installing a new clutch disc, replacing a pressure plate, or servicing a transmission on an R32, R33, or R34 GT-R, the NS201-FB6 keeps the clutch disc centered on the pilot bearing and spline shaft so the transmission slides back into place without binding or misalignment. Chemically heat treated for long service life in professional shop environments, this alignment tool is a staple for any technician working on RB26 powered platforms.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eForged billet construction for durability across repeated clutch jobs\u003c\/li\u003e\n\u003cli\u003eChemically heat treated finish resists wear in shop use\u003c\/li\u003e\n\u003cli\u003ePrecision matched to the 26 spline gearbox used with the RB26\/RB25 engine family\u003c\/li\u003e\n\u003cli\u003eCenters the clutch disc on the pilot bearing during installation\u003c\/li\u003e\n\u003cli\u003eEliminates guesswork and reduces install time compared to improvised tools\u003c\/li\u003e\n\u003cli\u003eOS Giken NS201-FB6 part number laser marked for identification\u003c\/li\u003e\n\u003cli\u003eCompact design fits easily in a technician tool roll or shop drawer\u003c\/li\u003e\n\u003cli\u003eReusable tool for shops servicing multiple RB26 equipped vehicles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment Table\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1989-1994\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline GT-R (R32)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1995-1998\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline GT-R (R33)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2002\u003c\/td\u003e\n\u003ctd\u003eNissan\u003c\/td\u003e\n\u003ctd\u003eSkyline GT-R (R34)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eOS Giken\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eNS201-FB6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTool Type\u003c\/td\u003e\n\u003ctd\u003eCenter clutch alignment tool\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eForged billet, chemically heat treated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpline Count\u003c\/td\u003e\n\u003ctd\u003e26 tooth\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEngine Compatibility\u003c\/td\u003e\n\u003ctd\u003eRB26 and RB25 with 26 spline gearbox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003eNot published by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Design\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e1x OS Giken NS201-FB6 center alignment tool\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eAbout OS Giken\u003c\/h4\u003e\n\u003cp\u003eOS Giken is a Japanese performance drivetrain manufacturer known for high end clutches, limited slip differentials, and precision service tools for import performance platforms. Their alignment tools are engineered to the same tolerances as their clutch kits, giving technicians a reliable way to install components correctly the first time on demanding engine platforms like the RB26DETT.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cstrong\u003eWhat is the NS201-FB6?\u003c\/strong\u003e\n\u003cp\u003eThe NS201-FB6 is a forged billet center alignment tool from OS Giken designed for the 26 spline gearbox used with the Nissan RB26 and RB25 engine family. It centers a clutch disc during installation on RB26 powered Skyline GT-R models.\u003c\/p\u003e\n\u003cstrong\u003eWhich vehicles use this alignment tool?\u003c\/strong\u003e\n\u003cp\u003eAny Nissan Skyline GT-R equipped with the RB26DETT engine and its 26 spline gearbox, covering the R32, R33, and R34 chassis.\u003c\/p\u003e\n\u003cstrong\u003eDoes this tool work on the RB25 engine too?\u003c\/strong\u003e\n\u003cp\u003eYes, OS Giken lists this part as compatible with both RB26 and RB25 applications that use the 26 spline gearbox pattern.\u003c\/p\u003e\n\u003cstrong\u003eIs this tool a one time use item or reusable?\u003c\/strong\u003e\n\u003cp\u003eThis is a reusable shop tool built from forged billet material, intended for repeated use across multiple clutch installations.\u003c\/p\u003e\n\u003cstrong\u003eDo I need this tool to install an aftermarket clutch on an RB26 platform?\u003c\/strong\u003e\n\u003cp\u003eAn alignment tool is strongly recommended for any clutch installation to keep the disc centered on the pilot bearing and prevent binding when mating the transmission to the engine.\u003c\/p\u003e\n\u003cstrong\u003eWhat material is this alignment tool made from?\u003c\/strong\u003e\n\u003cp\u003eIt is manufactured from forged billet material and chemically heat treated for added durability in professional shop use.\u003c\/p\u003e\n\u003cstrong\u003eWill this tool work with OEM Nissan clutches as well as OS Giken clutches?\u003c\/strong\u003e\n\u003cp\u003eYes, the tool matches the 26 spline gearbox pattern itself, so it works with OEM and aftermarket clutch discs sharing that spline count.\u003c\/p\u003e\n\u003cstrong\u003eIs this alignment tool sold individually or as part of a kit?\u003c\/strong\u003e\n\u003cp\u003eIt is sold individually as a standalone alignment tool.\u003c\/p\u003e\n\u003ch4\u003eInstall Instructions\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eRemove the transmission and old clutch assembly per the vehicle service manual.\u003c\/li\u003e\n\u003cli\u003eClean the flywheel surface and inspect the pilot bearing for wear.\u003c\/li\u003e\n\u003cli\u003ePosition the new clutch disc against the flywheel with the OS Giken alignment tool inserted through the disc hub and into the pilot bearing.\u003c\/li\u003e\n\u003cli\u003eCenter the disc using the tool and install the pressure plate, torquing bolts in a crisscross pattern to factory specification.\u003c\/li\u003e\n\u003cli\u003eRemove the alignment tool once the pressure plate is fully torqued.\u003c\/li\u003e\n\u003cli\u003eReinstall the transmission, aligning the input shaft splines with the centered clutch disc.\u003c\/li\u003e\n\u003cli\u003eReconnect all linkages, fluid lines, and the driveshaft before lowering the vehicle.\u003c\/li\u003e\n\u003cli\u003eBleed the hydraulic clutch system if equipped and verify proper pedal engagement before road testing.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eProp 65 Warning\u003c\/h4\u003e\n\u003cp\u003eThis product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"OS Giken","offers":[{"title":"Default Title","offer_id":46244028252239,"sku":"OSGNS201-FB6","price":78.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/osgns201-fb6-hero_2002d3ac-f7c2-43e5-8b84-7b932bc9491e.webp?v=1785174341","url":"https:\/\/www.blackopsautoworks.com\/products\/os-giken-ns201-fb6-alignment-tool-nissan-skyline-gt-r","provider":"Black Ops Auto Works","version":"1.0","type":"link"}