if you already have annular, I'd order them for sure,
if the axle boots are attached near a bolt together flange, then they are annular.
Roy (whunter) told me that rebooted original axles that have NOT failed yet are the best.
even better is if you know which side they came from and you install them opposite. for longevity.
I will soon be rebooting several marked sets from my fleet of parts cars. so SOON I'll get them for sale.