Mountain Driving 101: Match the truck gear and speed to the grade
13 September


Mountain driving teacher Andy Roberts and gear editor Jim Park speak their means by a downhill descent, explaining gear choice, desired highway pace. They make two journeys down the hill, the primary loaded to 80,000 lb (36,300 kg) and the second at 102,500 lb (46,500kg) to exhibit how choosing the precise gear will preserve the truck at a protected and manageable pace with no use of the service brakes.


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