All transmissions have two main parts: the gearbox as well as torque converter (or in the case of the guide transmission, a clutch). The gearbox is answerable for basically shifting the gears, when the torque converter helps to transfer the ability through the engine on the gearbox. Old automatic transmissions https://filtergearbox92468.iyublog.com/33231039/what-does-filter-gearbox-mean