This part was designed and manufactured after receiving several inquiries from builders we supply with parts.The intended usage is for 4l60E/4l65E transmissions mated to high revving engines ,mainly the LS series ,where rotor failures seem to be more common.The part will also retro fit back to all 700r4/2004r transmissions as well.It is made from high quality heat treated steel billet material under strict supervision and to exacting tolerances.Part is a 10 vane configuration and includes the rotor guide.Overall thickness is .7075".A technical bulletain will be included with the pump rotor to aid the technician in properly blueprinting pumps with the use of a depth gauge and micrometer for maximum pump efficieny.Interested parties can contact us for additional information.