Barnett, Low Profile Lock-Up pressure plate. CableCable operated. Easy bolt on installation. The black anodized and polished billet pressure plate will replace the stock pressure plate and diaphragm assembly. The low profile makes it fit inside the stock primary cover. When RPM increases; the applied pressure progressively increases; reducing the chances of clutch slip; even with serious high performance Big Inch engines. Includes three sets of chrome silicon heat treated coil springs in light;