OK, so I got a little ahead of my self as I was taking my throttle body off to clean the carbon out. There are 3 hoses that all have the same size fitting on the rear of the throttle body. One goes to the brake booster. I know this is the bottom one. As far as the middle and the top ones, one goes to the green fitting in the second pic, and one goes to a couple small vaccum lines, one of which goes to the egr. Can someone please help me sort this out? Thanks.

http://img.villagephotos.com/p/2005-...355/truck2.jpg

http://img.villagephotos.com/p/2005-...355/truck1.jpg

 

It shouldn't matter, they are both manifold vacuum and not ported vacuum ports.

 

The line that says "fuel" on it goes on top, the one that runs to the brake booster goes on bottom, as you said the one in the middle goes to the passenger side valve cover.