The answer on that one is to simply pull the cap and check it out. It is very easy to take off and see. You will be able to tell immediately if it's stripped. If I remember right, all you need to do is take off the wheel and an additional 6 bolts to see. The front axles are 17 spline if that helps any. I also have two capsfrom when I removed mine and put on selectable hubs if you need some. But if it is stripped bad you might need a new CV which=$$$