Valley Irrigation 58:1 gear ratio footed right angle worm drive gearbox.  58:1 ratio. 6.836" electric motor bolt circle.  Valley part # 03E3488.  Application: 30 RPM worm drive centerdrive gearbox or 20 RPM worm drive corner steering gearbox.  Pair with Valley part # 03E3860 motor to make Valley part # 03E3865 centerdrive assembly (1.5 Hp option).  This gearbox can be used with applicable Valley/Nidec branded motors.