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Trucks are among the most vital vehicles in the transportation industry, serving various purposes including freight transportation, construction, and emergency services. The efficiency and reliability of trucks largely rely on their essential components, and among these, the under chassis parts play a crucial role. In this article, we will delve into the different types of under chassis parts, their functions, and the importance of maintaining these components for optimal truck performance.


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The powertrain of a heavy-duty truck consists of the engine, transmission, driveshaft, and differential. Common transmission options include manual and automatic systems, with many modern trucks opting for automated manual transmissions (AMTs) that improve fuel efficiency and ease of driving. Heavy-duty trucks often come with 10 to 18-speed transmissions, providing the flexibility needed for varying terrains and load conditions.


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