Polaris Scrambler 500 4x4 Fix

About a year ago I had a problem with the 4x4 on my Polaris Scrambler 500.  When I turned on the switch only three wheels would spin.  After searching the internet, reading the manual, and taking the front left hub apart I was able to find the problem and fix it.   Below is the video I made of me working on the 4x4 and fixing the problem.  Hopefully this video can assist you if you have a similar issue or need help with your 4x4.