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The OS Giken clutch release movement alteration kit for Toyota Supra (JZA70) with an R154 gearbox provides a specialized 28mm change to clutch release movement. It adapts the release mechanism to match the R154 transmission setup, supporting correct engagement and consistent clutch operation for this drivetrain combination. The kit is a focused rebuild/alteration component intended for precise clutch release geometry changes when fitting the R154 gearbox to the JZA70 Supra.
OS Giken Toyota Supra (JZA70) w/ R154 Gearbox 28mm Clutch Release Movement Alteration Kit
