I recently changed Transfer case oil of my Mazda 2012 CX-9. I created video using some of the footage I captured during process. This video is for informative purpose only and I am not responsible, if there is any damage caused while following this video. Be careful !!
Suction Transfer Pump and since Pump's power card don't reach to car's battery easily , use jumper cable as extension( if you don't have already , buy it)