all 2nd gen axle housings the same?

[WSSix]

I'm brain farting right now and can't remember if all 2nd gen 8.5 rear ends use the same housing. Can any one confirm for me?

I've got a line on a complete open diff for $100 but just need to make sure lower 3 or 4 ratio gears and a series 3 carrier will fit even if it's currently a 2.41 or 2.56 ratio. I literally only need the housing. The rest is getting replaced.

Thanks