An automobile gearbox can be an assemblage of gears and shafts, and that is applied to manage the output speed and torque of the device/vehicle. A hydraulic automatic transmission uses planetary gearsets as an alternative to the manual transmission's layout of gears lined up together enter, output and intermediate shafts. https://gearbox-auto98529.bloginwi.com/67840259/top-guidelines-of-gearbox-auto