2005.5 – 2018 6.7L Cummins Not for Competion Use Towing Dual Disc Not for Racing applications Dual Disc Kit – up to 550HP Organic Facings Nodular Iron Flywheel and Billet Floater plate Pressure Plate Load – 3800# Kit includes: New Nodular Sprung hub G56 Dual Disc Flywheel, 3800# Pressure Plate, Organic Clutch Discs, Release Bearing, HD Pilot Bearing, Modified Clutch Fork, Bolt Kit, and Alignment Tool. NOTE: Includes HD Hydraulic Kit NMU70HYD-03 If you have a Stock – 500HP truck and tow alot this is the only way to go. This clutch has a very smooth engagement.