Articulated Sport (A/S) seats were standard in the 5.0L coupe starting in 1991.
Most of the 1991-92 SSPs had NON-A/S code ("F") on the door tag and buck tag. Very few had A/S code ("D") on the door tag and buck tag.
All of the 1993 SSPs that I have seen both a door tag and a buck tag for (21 so far?) have A/S code on the door tag but have NON-A/S code ("F" or "G") on the buck tag. Example:
1993 FHP #0805