After much research and phone calls this is where things stand.
If you check the 'dust' seal that is all it is for since the rubber ring floats and moves so it can move around for any vaiance at the point of installation.
2wd '86-'96 kits:Edelmann #8745, Omega Hose #2305, Gates #349400, Powercraft #8745
4wd '87-'96kits:Edelmann #8746, Gates #349410, ACDelco #349410