I had to find a low pressure line at the junkyard. Got it off a Cutlass. You can see how it fits in this picture. You can also see how the vacuum lines run from the ball. The line off the compressor is from a Camaro. Dont remember the year but the info is in one of the threads on this site. The one hose had to be shortened. Again, I think all the info is in the same thread. Do a search on AC serpentine conversions.What are you all using for the small low pressure line?