Re:2007 800 sportsman front diff wont engage??
When i broke the cage in my diff., i started noticing that it would not engage in reverse, then finally just quit engaging all together. First thing to do is to change the fluid and check your wires to the diff. If that doesn't work then it is most likeley the cage witch is really easy to change. I did mine in about two hours total. That includes taking off front tires, axles, and unbolting the diff. Make sure you get all the little broken plastic pieces from the cage out of there. Another thing you might check also is the input shaft. Not that anything is broken, but I took mine apart and there was some sand inside it so I just went ahead and thouroughly cleaned the diff while I had it out and apart.