Thai:
In looking at that FJ forum, there are 6 breathers to consider: 1) the front diff, 2) the front actuator, 3) the rear diff, 4) the tranny, 5) the transfer case, and 6) the E-locker.
I have an '08 4th gen V6, so I was able to locate two breathers in the engine bay up by the battery. I...