Surgery of a Stick Inside a Manual Transmission
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Contrary to popular belief, the input gear drives the countershaft, which then drives the main shaft for all the gears except Fourth in the NV-4500. For example, in First gear the input shaft gear (which is always engaged to the large gear on the input end of the countershaft) spins the first gear on the countershaft. This then spins the first gear (largest) on the main shaft. In Fourth gear (aka direct) the ratio is 1:1 and the input shaft is linked directly to the main shaft. View Related Article
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