1960-1975 Chrysler V8 - 10.5 in. 26-Spline Organic Disc with Borg & Beck Pressure Plate;Includes 26-spline clutch disc for use with most 5-speed and 6-speed conversions; Great drivability for power levels up to 450 horsepower; Smooth, chatter-free operation using top quality organic composite friction surface material; Upgraded damper springs gives up to 30% more clamping pressure than stock OE clutch; Steelback clutch disc features heavy-duty hub spring assembly for increased load capacity; All Street 450 clutch kits come complete with pressure plate, disc, release bearing, and alignment tool unless otherwise noted;