[immattj]

Knowing now that your Dak is 4wd & going from previous answers (by OldMarine & others) to questions along those lines, I think that the 2cond pic shows the breather/vent hose from your front differential.

 

[immattj]

Ok is there supposed to be an area where I should put it?
Thanks!

I don't know--mine is 2wd.
I did a quick search and found this on another Dakota forum

front diff - Dodge Dakota Forum

Dodge Dakota Forum for Dodge Dakota trucks with an interactive site including Dodge Dakota Forums, Pictures, Links, Message Boards, and Chat Forum

www.dodgedakota.net

and this kind of gives me the impression that it should just go up as high as possible & clip to something immoveable and vent to atmosphere. Apparently there may be some options to put some type of filter or resevoir over the end of the line, but I am kind of sort of getting the impression that it is usually just open to atmosphere. I am not sure about that, however.

 

[immattj]

. . . this got me curious, so I took a look under my GMC (which is 4wd) & followed the vent line up, & it clips to the plastic fenderwall liner up about a foot or so above the frame rail. It is actually NOT wide open toatmosphere--it has a small cylindrical shaped capsule on the end of it which I am kind of assuming is sort of a 1-way check valve designed to vent pressure but not allow contamiants in (the rear diff has the same thing). That may be a GM thing, but you could check with your Dodge dealer parts department on that. And I would think you could secure that vent line almost just about anywhere that was high enough (excluding moving parts like your hood).