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Why Does a Truck Have Eighteen Gears? Having more gears means more power and energy for pulling weight. Big engines in semis typically have a narrow power band, so drivers need to change gears often to keep the engine running efficiently. 18-speed transmissions have eighteen gears. These gears help the truck run efficiently, especially when …

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There are three types of pulling trucks: Light, heavy, and drag. Light trucks are the most common type of pulling trucks, and they are generally fueled by a single automotive engine. Heavy trucks, on the other hand, are usually powered by two engines. While they have more horsepower than their drag counterparts, they are more …

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