These clutches utilize two ceramic facings on the clutch disc and are aimed at the high performance trucks, these are the best of bad clutches. Driving manners are very performance oriented with no clutch slip, basically the clutch is in, or it is out. Great holding capacity for highly modified trucks, the only way you will get more holding power is to go to a Double Disc Clutch setup. Ceramic is a very hard material so typically flywheel wear is more noticeable using a ceramic clutch than with other materials. Pedal pressure is typically a little higher than factory pedal pressure, but still very drivable / streetable. Drive train and Hydraulic upgrades are recommended. Some clutch rattle may be noticed while idling in neutral. Ideally suited to trucks with high performance power modifications with 550-650HP. (Not recommended for towing).