Thanks to everyone for the information supplied. I knew about the 68 headrests being optional that year as my 68 Firebird came with them from the factory when most didn't. I'm still a little bit confused on the actual GTO 68 headrests. Are they the same as the 69s or not? If different, what makes them different? Is it just the post mechanism that holds them into the seat, or is the headrest itself different?
With respect to PUI vs Legendary seat covers, it sounds like PUI has gotten better over the years. I'm really wanting to put the best seat covers on that I can buy. I know the lead-time is excessive right now for lots of things so I'm figuring the seat project probably won't happen until next winter, but I would like to figure out which route to go so I can get everything on order. Again, I continue to appreciate the help.
Here is a link to an article on my car in case anyone is interested in seeing what it looks like (article / pictures are prior to me buying it). Other than the one seat being a bit worn, still looks pretty much the same.
https://www.motortrend.com/features/...iac-gto-wagon/
Old Joe