The cossie ones are different to any other 2wd hub, in the area at the base of the strut, in a std 2wd it is hollowed out and sculpted but on a cossie it is much thicker and stronger, lug spacing is the same though just the cossie lugs are tapped out to take the caliper bolt whereas std 2wd hubs are just a hole as bolt passes through.
4wd hubs are different to 2wd, and they use thicker strut bodies as well.
Depending oin which 2wd cossie hubs you have the tca fitting will vary as well.
tabetha