My only input on this would be this. First how many times are you actually going to drain the coolant? Second, if the petcocks do plug up, you could just remove them and either clean them or install new ones. Really, it's your choice.
Yep, IDIbronco, your right, it is my choice and you make a good point, and since I haven't tried it personally, I still don't know which is the best option for me but now, I have some food for thought either way.
The reason I posted this is because there is not ANY contrasting opinion about these petcocks out there that I could find, i.e. reasons NOT to install them and exactly why. I only found threads for reasons why people are "gung ho" to follow others suggestions to do the petcock mod.
I was happy to hear some other opinions that actually made sense as to why to leave things well enough alone, and keep the coolant drain plugs ORIGINAL, since FORD, in their engine designers great wisdom, thought well enough NOT to add peacocks or, they would have installed them as OE on all diesels.
I like to hear all sides before I decide.
In my 5th decade (and counting) its lots different for me, in terms of my decision making process and my willingness to react to FADS or new, next best, greatest upgrade without a good cup of coffee, or sometimes tea, a good night's rest and some head scratching, not at ALL wthen when I was younger and I tended to jump on any band wagon that sounded good, only to learn later it was a record and not ACTUAL musicians.... playing the music.
Can anyone else relate?
Just my .02 cents