ACT NZ1HDSS Clutch Kit Premium Friction Material Able to achieve High Heat Tolerance and Faster Recovery From Overheating Clamp Load Increase 20-50% Higher Burst Strength Due to Steel Backed Lining Includes Perf Street Sprung Disc, Heavy Duty Pressure Plate, Pilot Bearing, Release Bearing & Alignment Tool; 9.8" Disc; Fits Vehicles With 24 Spline Input Shaft