Diff Capped diff hose

[Jadonal]

Hello experts, I found this hose hidden behind a fender. It goes to the front diff and appears to be capped off. Im unsure why exactly. Any thoughts?

 

[Manic Mechanic]

That's a breather. And it's not capped off it's a one way valve

 

[TSB8C]

As Manic said, that's a breather tube. As fluid in the diff and axle tubes heats and expands/contracts, there must be a way for it to breathe. But you don't want water entering if you drive through water deep enough to submerge the axles. So each one (front and back) should have a breather tube that extends up high enough to be above any possible water intrusion point, and they have valves on them to allow air flow as needed but to prevent water entering in. Those valves are readily available new if you need to replace one.

 

[grimmjeeper]

It's a breather like others have said.

Looks like you're missing the floating cap that sits on top. That is entirely common.

This should be a good replacement. https://www.amazon.com/Dorman-HELP-...00-accc-35365319389a&pd_rd_i=B000COB4IQ&psc=1

 

[Jadonal]

You guys rock, and thank you. I’ll secure it as it and order that part. Thank you

 

[CJ]

That is what CJers do... Oh my goodness, we are fricken old!