Rubber Hose coming out of Rear Axle

[Sir_Brando]

Searching for "rubber hose axle" comes up with nothing close, so here it is. After inspecting my parking brake cable, I noticed this rubber hose coming from the Axle and connecting to the frame goin nowhere. Obviously its not doing anything, but I am curious about what it is. It looks like someone was chewing on it at some point and I'm sure it has been like that the 4 or so years I've owned it.

 

 

[HOrnbrod]

That's the diff housing vent hose. Relieves pressure in the housing and helps prolong the axle seal's lifespan. Mine looked like yours, just replace it with some new hose. I used neoprene tubing. Don't break the nylon male fitting in the cross member when replacing. :eek:

[Sir_Brando]

Awesome. When i first seen it i was hoping it was some super secret vacuum that would make my truck do more than 45mph if i replaced it.

 

Thanks man.