Has anyone replaced their differential vent lines with the bellows used on Can Ams or Arctic Cats? I have ridden around with balloons on the end of my vent lines just to see how much pressure is generated from the diffs getting hot and it's practically none. I'm going to get a couple of these and try them out, I found them for $5 a piece. It's worth a shot and if it works it will save me a lot of fluid changes.

 

Go for it, excellent and a cheap (low Cost) Upgrade..

 

I put them on the prairie and the big bear and they work great. my buddy put them on his two foremans and they work great for him too. (great meaning no water in the diff fluid.) I don't know why all manufacturers don't convert to these.