A gearbox or simply a transmission method in an automobile is actually a machine which makes use of multiple gears, shafts and actuating pieces to transmit ability from motor to the wheels. For additional more details, Here's an in depth posting on gearboxes or transmission methods used in automobiles. Automated gearboxes appeared commercially in the 1940s, in https://automobilegearbox30627.ampblogs.com/a-secret-weapon-for-automobile-gearbox-70830756