Cutaway view of a ZF 8HP transmission: torque converter within the still left, planetary gearsets from the centre, control mechanisms at the bottom The most common design and style of automatic transmissions could be the hydraulic automatic, which usually takes advantage of planetary gearsets that are operated utilizing hydraulics. https://gearbox-auto08631.shoutmyblog.com/31674385/not-known-factual-statements-about-gearbox-auto