Trying to confirm (or bust) my research again. Multiple sources such as the MPC, Mustangtek, various books, etc. have led me to believe that for '68 S-code cars, only cars with A/C had fan shrouds. I'm a bit skeptical about this conclusion, so - am I wrong? If all S-codes did not have shrouds, what were the determining combinations? Just A/C? Did GT-vs-non-GT make a difference?