Ford calls that a CONTROL and LINK ASSY. (DOOR LATCH CONTROL). That part fits right hand front doors on all F & U series trucks from 1980 through at least '89.
You can see it in the illustration below as part 21818 at the bottom left. (Don't ask why the base part number is 1021818 and the # in the illustration is 21818. I don't know, but it happens a lot in the MPC.)
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