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The OS Giken release movement alteration kit for the Toyota Supra JZA70 with the 1JZ-GTE engine and R154 transmission modifies clutch release movement to support clutch service or specialized rebuilds. Intended for that specific Supra and transmission combination, the kit adapts release geometry to suit restoration or upgraded clutch setups without implying unrelated compatibility.
OS Giken Toyota Supra JZA70 - 1JZGTE R154 Release Movement Alteration Kit
