Ceramic/Kevlar 450HP/900 Ft.-lbs. Tq. Utilizing two different buttons on the clutch disc these clutches are aimed at the moderate performance trucks. Driving manners are very good for everyday driving and towing. Take-off is relatively smooth and offer more slip and forgiveness than the ceramic/ceramic clutches. While the holding power for the Kevlar faced clutch is higher than the organic/organic faced clutches, the main advantage is less wear on the flywheel and longer life. Ideally suited to trucks with moderate performance power modifications. If towing more than the occasional 7,500-10,000lbs the Organic Dual Disc will be a better option. For use on NV4500 5-Speed Transmission. Features: 12.25″ x 1.25″ Performance Replacement Ceramic & Kevlar Buttons HD Spring Hub Rated @ 450HP / 900 ft lbs Torque 3800# Pressure Plate Kit includes: Pressure Plate, Clutch Disc, Release Bearing, Pilot Bearing and Alignment Tool. *This is not a Dual Disc Clutch. The picture is showing both sides of the disc.