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National Trucker Day is a day to recognize the contributions of truck drivers and trucking companies to the country’s economy. There are roughly 3.5 million truckers working across the country, and these individuals make huge sacrifices to keep the country moving. They often spend days, weeks, and even months away from their families. Truckers also …

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Retarders are auxiliary, non-friction brakes used to slow down a truck when it is going downhill and prevent the main brakes from overheating. They also have a secondary function, known as the Jake brake, which opens the exhaust valves just before the compression stroke ends, releasing the compressed air in the cylinders. There are two …

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