ACT Heavy Duty Race Sprung 4 Pad Clutch Kit | Toyota Supra / Lexus SC300 (88-97 / 92-97) (TS3-HDG4)1988 1997 Supra 1992 1997 SC300 3. 0L (Non Turbo) Heavy Duty Race Clutch Kit by ACT This kit features ACT's Heavy Duty pressure plate paired with their ceramic 4 pad sprung race disc. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four stage, heat treating process for unparalleled performance. ACT pressure plates have precision cover stampings to