After taking a look at PS glass, I can see why the communication problem exists.
That isn’t a TINTED w/s pictured at PS. It’s a SHADED w/s, a DW-689-S. IT’S NOT A DW-689-T. Look at the w/s color c, t, s that I posted about w/s colors. Based on what I see at PS, the only w/s they have for the fgf is a shaded, no tinted and no clear.
If the tempered glass is clear, it came with a W-689-C. If the tempered glass is tinted, it came with a W-689-T or a W-689-S. Could a w/o/a/c car have tinted glass? Most likely people wouldn’t special order tinted, but I don’t see why the dealer would deny such a request.
This would be interesting to know: If w/s has modern-day NAGS part number DW-689, it isn’t the NAGS number that was used when Pontiac made your car. It would have been obsolete NAGS W-689. As for ‘correct’ date-coded glass, you need to consult an expert, and I’m not an expert. The expert is the person who hands out trophies, so if the expert tells you a “DW-689” is date-coded glass, it’s date-coded glass.
