You can insert the pic by dropping its URL in the field I circled:
That's what I did to put it here:
As for the seal, can you identify it from the illustration here: Driveline/
4wd Front Hubs & Rotors? My guess is that you are asking about the one labeled "1175 or 1190". Right?
Whichever, you then go to the Parts List tab and use the Model Application Chart to determine which parts list you need to use. Then scroll down to that parts list and get the part number for the 1175 or 1190 listed.
I'd do it for you, but you don't have a signature so I don't know what your truck is.
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