You name it and you can make it work. I have intentions of running either a mechanical or a hydraulic winch in the future. Others I have heard about are running air compressors, generators and yes even a water pump on a fish hatchery truck. Big rigs use them to unload products like flour, cement and other powdery goods.
Don't snow plows have a hydraulic raise/lower control that could be ran off the pto?
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99 2500, QC, SLT, 4x4 ISB, 5sp, 3. 55lsd, Infiniti am/fm/cd, HDTcase, Tow mirrors, Tow Pack, Camper pack, NW Running Boards and Mud flaps, Front Mount Receiver, Tekonsha Brake Control and Husky Liners.