After a road trip, the next morning saw a small puddle, 3" maybe, under the car. Pulled it into the garage and climbed under it, and saw the attached picture. Hard to tell where the fluid is coming from, possibly the output shaft for the front wheel drive? Anybody else had problems similar to this, have seen a couple of thread on this, so another question is, if it is a plugged vent line how do I check it and where does the end of the vent line run to, I found where it connects to the transfer case just above the read output shaft. Appreciate any help since this is my first post.