Upgrade your 2003-2010 Ford 6.0L/6.4L Powerstroke 6-Speed with the Valair Street Dual Disc Clutch NMU60DDS. The Street Dual Disc offers more holding power and a wider range of use over a single disc clutch, while retaining similar driving characteristics. With a 3800lb diaphragm style pressure plate quick shifts are still possible while pedal pressure will be just over stock. Ceramic Street Dual Disc is best suited for daily driven trucks that have performance modifications up to 650HP that do see some racing or hard use. Light towing is possible; clutch engagement will be somewhat aggressive but tolerable. Features: 12.25" x 1.375" Ceramic Spring hub Dual Disc Rated @ 650HP & 1300 Ft-Lbs Kit Includes: Billet Steel Flywheel, Billet center plate, Pressure Plate, Clutch Disc, Release Bearing, Pilot Bearing and Alignment Tool.