How to check Electric Front Diff Actuator 4th Gen Ram 1500 (06-16)

06-16 Ram 1500 4wd Actuator, this is how I checked to make sure my actuator was working. I made sure the sleeve slid easy over the gears, and put light pressure on the actuator with my hand (be careful of pinch points) and had my wife switch from 2wd to 4wd to watch everything move normally. You should top up with 75w-140 after I only needed a few ounces. My issue was the c-clip or snap ring blew off on the driver side stub shaft out of the front diff and my CV axle slid off and blew apart. I made another video how I fixed that mess.