I've just purchased a 97 Xplorer 500... same chassis and drive train as the 96-98 Sportsman. I've ordered Quadrax rear axles (that include CV's verse the U-Joint) for a 99 Sportsman as well as the wheel bearing hubs, I'm going to upgrade mine. A friend of mine had a shop do this upgrade on his 98 Sportsman to get rid of the U-Joints as his would not last a season. Can't see why it won't work on mine... Motorsport shop that I ordered the parts from said it will work just fine and said they have done a few of them with no problems.I have a 98 sportsman 500 and it has gone through two right rear axles and one left rear. Can someone please tell me why this keeps happining.