Barnett Scorpion Billet Clutch 607-30-10091CNC machined billet aluminum design features over twice the friction area of the stock clutch Provide positive engagement and release Incorporate six heavy duty coil springs instead of the diaphragm spring; include an extra heavy duty set of springs for higher horsepower applications Friction plates are compatible with most primary oil Extra capacity clutch for 4 belt drive is 1 thicker; uses 16 friction plates and 17 steel plates Simple bolt on