i dont remember which is which....but I also dont remember being confused about it either. its not like those lines are soft rubber....they are pre-formed plastic and should basically just sit near the correct connection. someone please correct me if im wrong.
yeah, they are hard lines, and should go right back into place, they are also different sizes....
^^^^i knew i was missing something....different sizes....lol
yeah, they are only going to fit one way....cant mess it up.
If you find yourself trying real hard to connect one, and the other goes on tooooo easy, you have them backwards.
This may help.
It's from a 1997 Z24 but similarities should abound.
I also cut back the tubing when reinstalling the tank so that I'd have newer line on the barbs. There's enough line there to be able to do this with no problems.
Good luck with it.
Misnblu.com
Newbie member since 1999
Thank you Dave and JBO! 
