This transmission has four forward gears and one reverse equipment. Let us summarize the gear ratios, inputs and outputs: The General Motors Hydra-Matic became the initial mass-created automatic transmission adhering to its introduction in 1939 (1940 product calendar year). Offered as a possibility in cars such as the Oldsmobile Sequence https://gearbox-auto10751.mpeblog.com/59816102/detailed-notes-on-gearbox-auto