WHAT A TRANSMISSION DOES
A transmission receives a speed and torque input from the engine and delivers a different speed and torque to the final drive and differential. The engine delivers its power to the transmission by means of a rotating crankshaft. The transmission receives this power at its flywheel, a heavy disc that is connected to the crankshaft. The flywheel turns whenever the engine is running. The transmission delivers its output power by means of a rotating shaft.
Almost all transmissions adjust speed and torque by means of rotating gears. A gear is a wheel with projections called teeth around the edges. The teeth mesh (fit together) with the teeth of another gear.
