So i bought these not too long ago. Dude said they were aftermarket. It honestly doesn't matter to me, i just want to replace mine with torn boots. Either way im kind of curious to find out what they came out of. All axles that i have swapped before have looked the same except these.

Three things i noticed

1. the diff side to them are fully round. All others I've seen have that material removed in-between the bolt holes.
2. the hub side are also fully round, they dont have the dips to them like all the ones I've seen.
3. they are slightly beefier