HD/Modified Street Clutch Kit Z66-HDSS kit features ACT\’s most popular Heavy Duty pressure plate and most popular street 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 provide rigidity and consistency. ACT\’s Performance Street discs feature premium organic materials with high copper content for better heat transfer and steel-backed lining for greater burst strength and durability. These discs have reduced marcel for faster shift action to complement ACT pressure plates, with increased strength and reliability. Features Torque Capacity (ft/lbs.):275 Torque Capacity Over OE: 43% Disc Type: Street Disc Spline Count: 22 Spline Size (in.): 15/16 Disc Diameter (in.): 8.8 Disc Diameter (mm.): 224 Pressure Plate Type: Heavy Duty Applications 1993-1997 Ford Probe GT 1993-1998 Mazda 626 DX 1999-2001 Mazda 626 ES 1993-2002 Mazda 626 LX 1993-1997 Mazda MX-6 2002-2003 Mazda Protege 5 2002-2003 Mazda Protege ES / LX / DX 2003 Mazdaspeed Protege 2001 Mazda Protege MP3 What\’s In The Box? 3000203 AT05 MZ018 PB1005 RB110 Warranty One (1) Year from Retail Purchase Downloads Installation Instructions