This kit features ACT's heavy duty pressure plate that features an exclusive diaphragm design to increase the clamp load, reduce deflection, and maximize clutch life. All of ACT's diaphragms have gone through a four-stage heat-treating process, and the street disks have been made with premium organic materials for better performance. Here is a list of components included: • AT90 Alignment tool• PB1004 Alignment Tool• RB844 Release Bearing• SB020 Heavy Duty Pressure Plate• 3000505 Performance Street Sprung Disk• 600890 XACT Flywheel Streetlite