That's actually only for 1980 - 81 trucks, as shown here: Exterior/
Name Plates. And, for whatever reason, it is listed as part #9850398-B. Now we've found the typical ebay seller.
Plate name (rear corner panel) Type 6 "XLT" (1980/81) •EOTZ 1050398-B R.H. and L.H.
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