Hi Tapatio, Glad to hear you were able to get fixed and not have it happen somewhere in the middle of no where. It's also cool that you shared one of Ron Huxell's (A.K.A. dieseltechron) video's. Since I prefer to change parts in my driveway at a time of my choosing several years ago I dug into my 6.0 to change the oil cooler, the EGR cooler and a bunch of other 6.0 weak parts preemptively before a failure. I wanted to change the dummy plugs and standpipes but wasn't sure if it was possible without lifting the body. Then one day Ron posted this video proving it was possible without lifting the body.
After watching the video a bunch of times and getting the parts, down in the valley of the 6.0 I went again. Now that I've been this far into my engine compartment a few times I carry a tool roll that has only and all the tools needed to dig down to the oil cooler in the van. Not that I would need to do that in the middle of no where but as you know just because you have a new idler pulley in hand and can see the bad one doesn't mean you can get to it without digging.
Anyway, just wanted to support the thread with more info and say yes everyone should not
be running on stock dummy plugs, stand pipes or o'rings. Also, if your confident in your mechanic skills and you have the time you can change them in the driveway. And a big thanks to Ron Huxell who helped a lot of us. R.I.P.