Welcome! Glad you joined.
Where's home? I ask because we have a map (Bullnose Forum/Member's Map in the menu) and we can add you if we have a city or zip.
On the master cylinder, that looks like the right one. I'd recommend that you go to Rock Auto's site and see about getting one from them.
This link should take you right to the master cylinder's for your truck. I hope.
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