upton 180
![]() | Standard-tread tractor | Standard-tread tractor |
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Standard-tread tractor | ||
Standard-tread tractor |
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Transmission | |
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Gears | 21 forward and 9 reverse |
The Upton 180 used military-surplus gear boxes. The first gearbox offered four-forward and one-reverse speed. The second gearbox offered five-forward and one-reverse gear. This arrangement offered 21 forward and nine reverse gear combinations. The original rear gearbox was a Spicer from the LVT-4 landing craft. Later, Mack gearboxes from the M3 tank were used. | |
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