Just joined, and hoping someone can help identify this part and what it connects to. Mine has a broken fitting on the end and is just dangling. TIA
1993 S10 Blazer Tahoe LT with 4.3L CPI Vortec

 

Where does the other end of the hose connect?

 

Right...that's the big mystery. At the end of the fat hose is a T. One end of the T has a broken off fitting...from where??? The other end has a vacuum hose about 12" long just dangling attached to nothing.

 

That looks like it could be the vent for the front diff, at least from that end. I wouldn't thing it would have a tee on the other end unless a previous owner decided to just run one vent for both the front diff and tranny together.

 

Ok..I'll explore around the front diff.

 

Here's a pic of the end of the hose

Shows tee, broken off pip from somewhere and remaining hose, that goes.somewhere

 

I think I solved this: these are the lines associated to the 4x4 actuator. Thanks to this link:
http://www.s10forum.com/forum/f220/t...thread-327817/
Now just to fix it with new lines and fittings.

 

Excellent. Glad you were able to figure it out.