Did this a while back. Think I even mentioned it here. Thought I'd just show it.
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The yellow is the old road tube. It used to hang down behind the engine. Man, there is a LOT of oil all over everything down there, from that tube! I'm going to clean that up, to make sure it isn't coming from something else. But I'm pretty sure it is all from that tube.
It would smoke like the truck was on fire, at a stoplight. Lots of angry looks.
Decided to pull it up to where you see it now, and put an extension on it so it would go into the intake. The red is a plastic irrigation elbow. And the yellow is the new tube. Clear vinyl tubing, reinforced with fiberglass strands.
My one concern was whether or not I would end up with "run-on". That has not been even close to a problem. But if that ever happens, I can pop the hood, and yank that hose out of there. It's purposely not anchored at that end, for that reason.
The truck in fact, runs smoother now. When at idle at a stoplight.
That clear tube is black now. There is a lot of oil that comes through that. I have plans to make a homemade catch can, which I will put in place of the irrigation elbow.