vacuum line question

[fireguyfire]

I am putting the final bits and pieces back together on my 68, and I am routing the 2 long vacuum lines that come through the grommet on the firewall from the headlight switch, through the front area to connect with the 2 "T"s on the front harness that go to the actuator pods. My question is, one hose is black, and the other is black with 2 yellow stripes, and I'm wondering if it matters which "T" the hoses connect to in the front, or are they interchangable?

[Cooter]

They are specific as with lights on, one is for up and other is for closed.
I used an AC vacuum pump to get mine correct.

[Dmichels]

you have a 50/50 chance of getting it right the first time

[tan top]

 have a look here 

http://www.dodgecharger.com/forum/index.php/topic,61997.0.html