Is it necessary to relocate the breathers for the trans, t case, and front diff?

The title kind of speaks for itself but I'll dive deeper. I'm seeing if anyone at all knows if relocating the breathers (other than the rear diff) is necessary for water crossings. I've looked online and haven't found too much info on this topic when it comes to 3rd gen tacos. I already relocated the rear but when it comes to the others. There are many people with many different ideas as to which line is which, where they lead, and whether or not they need relocating. And if you do need to relocate them, I would love some advice on doing so if at all possible!

Please and thank you

 

Most folks just relocate the rear diff breather. There are breathers on the other three but most route into the engine bay pretty high up to not have to worry. Its either the trans or t case that doesn't route into the engine bay and just sits on top. You can relocate the breather on that one, but its too much of a PITA for more and the juice just isn't worth the squeeze IMHO.

 

Depends on if running hot or cold. I only do water crossings if I have to do them. If I do, I stop, let everything cool and do them. No issues. If you do them for fun and fast, relocate them.

 

Constant deep water fording you need it. Once and a while it's not needed.

 

The transmission, front differential, transfer case and their actuators breather are all up pretty high from the factory. If you get into water that deep, the breathers aren’t your real concern.

The rear breather is the lowest.
And you have already taken care of that one.