Automatic transmission | Benefits, Maintenance & Repair
https://www.britannica.com/technology/automatic-transmission
WEBMar 7, 2024 · automatic transmission, arrangement of gears, brakes, clutches, a fluid drive, and governing devices that automatically changes the speed ratio between the engine and the wheels of an automobile. Since its introduction in 1939, the fully automatic transmission has become optional or standard equipment on most passenger cars.
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