Be careful. It says "Ford 86-96 F150, Bronco" and if you look around it says "8.8". But Ford's chart from our Driveline/Axles & Differentials page says the 9" was still used through '86. So you might have an '86 and they won't fit. Having said that, the kit should fit some trucks as far back as '83 since the 8.8 was introduced then.
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