2002 Chevy s10 zr2 4x4 fix posi lok install

Front hubs were not engaging. The vacuum wasn’t reliable in the cold weather or any other time I needed the 4x4. The posi-lok seems to be a more reliable system. As others have stated the directions are horrible so I made a quick video showing where I punched through the firewall, where I mounted the lever under the dash and how to disconnect the original cable. Let me know if you have questions.