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Gearbox: That portion of a transmission containing the gears used to vary the torque and rpm of the output shaft that transmits engine power to the driven wheels. Because the engine produces
its best power within a limited operating range, gears are used to provide a range of drive ratios while enabling the engine
to operate within its range of power.
its best power within a limited operating range, gears are used to provide a range of drive ratios while enabling the engine
to operate within its range of power.