For over two decades SunCoast has continually led the the industry in both innovation and performance. Dating back to the days of Redneck Nationals and Team Green before outlaw racing was even thought of SunCoast transmissions were breaking records and winning world championships. The phrase "copied but never caught" could never be truer than now. This kit was specifically designed to improve the reliability of the governor solenoid in normal use and to handle higher base pressure in the high-performance application. This unit will fit both early and late style. We recommend you also install a new Governor Pressure Sensor/Transducer with this kit.