if it has auto/4high/4low it runs in 4wheel full time. the transfer case acts as a traction lock rear end, the axles can run different speeds in 4auto, when 4high or 4low is engaged it keeps the front and rear together like a positrac. there is no shift motor. it will never run in 2wheel drive. can have chatter in viscous clutch, my experiance is chain gets stretched with miles and starts slipping.
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Today's Featured Article - Tuning-Up Your Tractor: Plugs & Compression Testing - by Curtis Von Fange. The engine seems to run rough. In the exhaust you can hear an occasion 'poofing' sound like somethings not firing on all cylinders. Under loaded conditions the tractor seems to lack power and it belches black smoke out of the exhaust. For some reason it just doesn't want to start up without cranking and cranking the starter. All these conditions can be signals that your unit is in need of a tune up. Ok, so what is involved in a tune up? You say, swap plugs and file the points....now tha
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