Barnett Scorpion Low-Profile Lock-Up Pressure Plate368660649 Product Description New low profile design fits under stock primary cover Low profile design fits under stock primary cover Direct bolt on design retro fits to existing Scorpion billet clutches Direct bolt on design retro fits to existing Scorpion billet clutches Progressively increases pressure as rpm increases Progressively increases pressure as rpm increases CNC machined, 6061 T 6 billet aluminum Perfect for large displacement, high