I checked out that video. My t-case was not leaking at the actuator, but I’ve heard that’s a common problem, too. Check that as well. The output shafts are where the driveshaft flanges attach to the t-case. If you have to replace those seals, you’ll need a 30mm socket to remove the flange nut.
Without seeing more detailed pictures, it's hard to say where the leak would be coming from. But, I recently had a leak coming from the front output shaft seal that was dripping in the same area. The replacement was one of the easiest maintenance tasks that I have tackled on our 04 GX470.
Part...
I made my first real GoPro video today. It's a time lapse drive up I-24 to Nashville and back in my wife's GX. Most of my YouTube videos are off road shots of my 4Runner and friends.
Murph
Thanks, @BlackUSK56. I don't go to Murfreesboro very often. And because of my odd schedule, I don't drive the 4Runner a lot. We should get together sometime to do some trail riding.
Murph