The torque converter is what transfers energy through the motor for the gearbox. It is a fluid coupling that works by using hydraulic stress to multiply the torque of your motor. The torque converter is created up of 3 key pieces: the pump, the turbine, as well as the stator. https://rylandwlzl.ltfblog.com/33043198/an-unbiased-view-of-filter-gearbox