Waiting right now for the windshield installer to show up. Here's what I think I learned in my search.
My bill is going to come to $250, I expect, and I am going to have a PGW (pittsburg glass works, I believe) installed here at my house. PGW & Pilkington seem to be split 50/50 for OE on the TB. As a note, PGW used to be PPG, changed names in 2010.
I could have gone to a salvage yard and paid $215 in total, but had to sit there and wait for four hours for glass that came out of a truck that ended up there.
I could have gone with another shop that came in at $210 for new, but they wouldn't say who the mfr of the glass was. "it's like OEM glass, y'know, I mean, for some vehicles, but I don't know for your vehicle, but, y'know it's OEM." OK .......? No.
I could have paid Safelite $325 to come to my house with non-OEM glass. This was before I was clear on the difference between the OE/non-OE manufacturers. I don't know what they would charge for OE glass.
I could have gone with ABRA using PGW glass for about the same price on as I am getting, but this guy could install today, and he was willing and able to fill me in on how to figure out what I had, and how to know what I was getting.
I found out that the windshield in my vehicle was already replaced once, and that it was Safelite glass. There is a stamp on the glass right above the VIN slot with SGC, in my case. Safelite is a manufacturer that also has an installation network. The guy told me the that he thought they had a reputation for using less than enough glue on the rear-view mirror hanger, and a lot of times the mirror came off and took a chunk of the glass with it. This is exactly what happened with my SGC replacement windshield that was on the truck when I got it.
It seems as though individual glass replacement shops can also buy safelite glass, and install that.
As for the rest of the glass on the truck, some of it is PPG, and some of it is Pilkington.
Windshield replacement forums seem to think a lot of the glass is manufactured overseas (China), and you can figure out whether the glass in front of you is made here or there by the DOT number on it, but nobody seemed to know how to cross-reference the number to the factory. So you could, if you knew, but nobody did, so I guess I can't. But supposedly it all ought to be up to spec by manufacturer no matter where it came from. If you believe what you read on the internet, anyway.
So ... the most I was quoted was Safelite, and that was not OE. Cheapest new replacement for (probably) not OE was about the same as salvage yard pricing. Middle of the road was OE installed by a local company.