ACT 1979 Ford Mustang XACT Flywheel Prolite

157 tooth ring gear, 0.0 oz, in balance, (No counter weight) 6 bolt XACT Flywheel Prolite Dramatically improved engine response and acceleration, mild to moderate gear rattle; Heat-treated forging for strength and toughness, induction-hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability 600412 is a Prolite flywheel, which is ACT's lighter flywheel offering with lowest inertia. Prolite flywheels are designed for best throttle response and acceleration. Prolite flywheels are preferred for road racing or rally racing, and have reduced drivability. Materials are properly distributed for maximum strength, good heat tolerance and rigidity. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. Fitment: FordMustangBase1968 FordMustangBase1969 FordMustangBase1970 FordMustangBase1971 FordMustangBase1972 FordMustangBase1973 FordMustangBase1979 FordMustangGhia1979 FordMustangGL1982 FordMustangGLX1982 FordMustangGrande1970 FordMustangGrande1971 FordMustangGrande1972 FordMustangGrande1973 FordMustangGT1982 FordMustangGT1983 FordMustangGT1984 FordMustangGT1985 FordMustangGT1986 FordMustangGT1987 FordMustangGT1988 FordMustangGT1989 FordMustangGT1990 FordMustangGT1991 FordMustangGT1992 FordMustangGT1993 FordMustangGT1994 FordMustangGT1995 FordMustangGT-350 20th Anniversary1984 FordMustangGTS1995 FordMustangL1982 FordMustangL1984 FordMustangLX1984 FordMustangLX1985 FordMustangLX1986 FordMustangLX1987 FordMustangLX1988 FordMustangLX1989 FordMustangLX1990 FordMustangLX1991 FordMustangLX1992 FordMustangLX1993 FordMustangMach 11970 FordMustangMach 11971 FordMustangMach 11972 FordMustangMach 11973 FordMustangSVT Cobra1993 FordMustangSVT Cobra1994 FordMustangSVT Cobra1995 FordMustangSVT Cobra R1993