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ACT HD/Performance Street sprung clutch kit for 1971 Pontiac Firebird. The GM8-HDSS kit pairs ACT’s Heavy Duty pressure plate—featuring an exclusive diaphragm design and precision cover stampings—with a sprung street disc built from premium organic friction material with high copper content and a steel-backed lining for strength. Diaphragms undergo a four-stage heat-treating process and the reduced-marcel disc improves shift action to complement the pressure plate; kit includes a one-year warranty.
ACT 1971 Pontiac Firebird HD/Perf Street Sprung Clutch Kit
