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All wheels locked up

3857 Views 6 Replies 6 Participants Last post by  fishfiles
It is a 2000 Honda Foreman 400 4x4. It won't move, it's not frozen. Does anyone have ideas or suggestions cause I'm lost?
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Happened on my fourtrax 400AT and still is its always in the winter. I think its the final drive/rear diff. Tap it lightly with a mallet or hammer w/piece of wood between to try and loosen anything that could freeze inside. After I ride for a bit it thaws out from the friction, however if you don't ride in water/haven't been in water then im not sure.
An easy fix to diff oils freezing due to water contamination is to add a friction modifier, some contain antifreeze agents of some kind. I’m NOT in any way shape or form advising anybody to add antifreeze to oils.
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