An automobile gearbox can be an assemblage of gears and shafts, that's employed to manage the output velocity and torque of a equipment/automobile. The final Motors Hydra-Matic turned the primary mass-created automatic transmission following its introduction in 1939 (1940 product yr). Available as a choice in cars like the Oldsmobile https://gearbox-auto29628.designi1.com/55263607/the-ultimate-guide-to-gearbox-auto