Differential Breathers

Correct me if I’m wrong but For 4WD vehicles only one is needed correct ?
I think I read somewhere that one has to go forward?

 

One per diff, so two total. All differentials have breathers. Same as the engine, trans, and tcase.

 

Thank

Thank you
I know it probably sounded like a silly question but I appreciate you answering the question. on YouTube I only see people installing the one on the rear diff. My truck is stock height but I wanted to have peace of mind if I did go through deep water

 

I thought the front diff and t case had ones that were already piped into the engine bay? Or are the two for transmission and t case?

 

I was just answering the general question of having diff breathers. But yes, @joseph_womack is correct if you're talking about extending the stock diff breather then you only need one for the rear. The stock rear is just a little nipple with a cap on top of the housing. The front diff and tcase are already extended up into the engine bay and tucked along the firewall as I recall...

 

Hey what is the red arm thing hanging down under the rear of your truck if you don’t mind my asking?

 

Looks like an aftermarket track bar

 

Correct it’s just a ladder ( traction ) bar.
Had it powder coated to best color match