I only know a little about 67's based on what you've stated before and looking at a few trucks in these parts. I have noticed that the 1967 "custom" models seem to rarely have the custom script emblem. Too much stuff (Eric) has only seen one GMC with those
The maroon truck is another custom I have that doesn't appear to have had any emblems but it has been repainted. I am thinking they either didn't have emblems later on or they adopted the same emblem as the super custom as shown in the teal truck pic. Those emblems are the most common emblem I've seen on 67 GMC's. Most 67 GMC's never had a SPID so that makes things even more confusing. Grilles in 67 as far as I know were painted for base model and chrome for custom or super custom. This leads me to believe the maroon trucks grille was replaced. I think buddies were standard in the super custom only.Need to look at my 67 dealer brochure when I get home.