Front Diff, Trans, & Transfer Case Breather??

2019 TRD Pro 6 speed manual. Installing rear diff breather relocate, but wanted to peek around and see if I could find the front diff, transfer case, and transmission breathers as well. Which ones are these? 3 black breathers located on drivers side. Also found this tube sticking out on the passenger side that I have no idea what it’s for. Any ideas?

 

Three breathers sounds right for transmission, transfer, front diff.
I assume the other tube is the AC drain, could be wrong though

 

That’s what I was thinking, it makes sense. And gotcha yeah I’m assuming it’s probs the AC drain I didn’t think of that

 

You are both correct. Also a lot of people tend to extend the AC drain line by adding a fitting and then a longer hose. That way the AC drain is draining to the pavement and not all over frame, suspension, etc so you don't start getting rust prematurely. On the flip side other people say not to extend the line because it may clog and cause odors in the cabin. Just thought I would share this in case you were interested.

 

The front diff has two breathers, one for the diff itself and one for the ADD actuator. On my truck, the transfer case and transmission tee together and have a single breather, but it's just located on top of the tranny. Maybe Toyota moved it up into the engine bay for newer trucks. If so, that would make it front diff, ADD, and transmission/transfer.

And the other hose is AC drain, as stated.