That's confusing. That looks like the in-bed tire carrier, but E0TZ 1405-A cross ref's to E0TJ 1405-AA and that is a Support that is part of either the slide-out carrier for 1980-84 trucks w/o an aft-axle tank and with 15" wheels, or 80-86 trucks w/o that aft-axle tank and with 16 or 16.5" wheels.
Gary, AKA "Gary fellow":
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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