Word forms: (regular plural) transmission brakes
(Automotive engineering: Vehicle components, Brakes, steering, wheels, tires, and suspension) A transmission brake is a brake that operates on the transmission system of a vehicle rather than directly on the wheels. ▶ transmission1, transmission2, brake1, brake2
⇒ When four wheel brakes were fitted, the transmission brake was gradually phased out. ⇒ The transmission brake of a shaft driven car is applied to a drum carried by the driving shaft. ⇒ A transmission brake locks the transmission rather than the wheels.
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