And the MPC says:
D7AZ 13550-A
80/88 F100/150(83)
87/A
E1FZ 13550-A #Painted argent
83/ R(99) — w/std. bumper or w/o bumper
So, the "correct" one for the Flaresides is also the one for Aerostars from 1987 through at least 1989 when my catalog stops.
But that doesn't mean that the one for the Ranger won't work. However, that part was not engineered for the Ranger. I say that for two reasons: First, it was engineered in 1981, before the Ranger came out. Second, the "F" means it was for a car.
So I turned to the 1980-89 car MPC, and lo and behold I found this:
W (ESCORT). MW (LYNX)
81/82 W, MW "BEFORE 4/82" ElFZ 13550-A
So it was made to go on a 1981 or 1982 (built before 4/82) Escort or Lynx.
Gary, AKA "Gary fellow":
Profile
Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI