Splitter transmissionsSplitter transmissions are conceptually similar to range transmissions in that each gear position on the H-pattern shifter offers more than one speed. However, the main difference is that the driver doesn't shift between two ranges in general. Instead, each gear gets split — thus the name — into high and low ratios, thereby essentially offering two gears for each position on the shifter.So instead of going through all four or five low-range gears before shifting into high range, a splitter transmission sees the driver moving through both ranges of each gear as they move up the gearbox. The gears go first gear low split, first gear high split, second gear low split, second gear high split, and so on, until the driver reaches top gear.A splitter transmission gives drivers quick access to more gearing options than a range transmission, making them much more flexible and adaptable to various situations. Having the granular control of a splitter transmission makes semi-trucks easier to drive in start-stop city traffic, for example. These transmissions are also great for regional hauling, as the longer routes – compared to local trucking — mean that truckers may have to deal with more varied terrain than a simple range transmission can handle.
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