ACT DN3HDSS 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 Conversion Kit - Replaces Modular Clutch. Must use ACT Flywheel (Flywheel NOT Included in Kit); Includes Alignmemt Tool & Release Bearing