CF010517 The Centerforce® I Clutch Series utilizes a full facing disc with premium friction material and is designed as a high-quality entry-level performance clutch for those in need of a superior stock replacement 8.875" Diameter 224mm Diameter 1-1/8" x 21 Spline Input Shaft Holds Up To 209 ft/lbs of Torque Sprung Hub Disc with Organic Material Centrifugally Assisted High Quality Friction Material Light Pedal Effort Smooth Engagement ** Toyota Celica Corona Pickup Celica Supra 4Runner to a Toyota Van - 1972-1995 ** application list. More detailed on their website