It may be an optical illusion but it appears that if your filler tube and vent hose were inserted further into the connector hoses that it would be angled down more and protrude from the side of the cab less with a more desireable angle.
I’ll have to take another look at that possibility. I do see what you mean just looking at the photos.
However, the way things are aligned currently sort of represents “the best” fit I could achieve with the combination of parts. If you move the neck closer to the tank, the the mismatch of tank inlets and the filler neck becomes harder to solve with the hose. At least that’s the way I recall it without the truck in front of me.
