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North branch MI | I see them on bulk Chem trucks . I think the pto shaft on the back of the road tractors originally was to avoid hyd cost on the trucks . Because most are a shaft with U-joints from the trans right to the back of the truck . When the driver parks at the unloading spot they would hook up a pto shaft between the truck and the pump on the trailer. That truck has a expensive setup to run multiple trailer types . Those super coolers are to save the truck from carrying massive amounts of oil to stay cool running hyd motors . Most companies would remove that stuff to put on the new truck because they are big bucks .
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Hydraulic drive PTO on a road tractor - used for?
