Output shaft seal or tail housing seal

Hey everybody
I got a used aw4 to replace mine which is on it's last leg. I figured I would replace a few of the easy to get to seals while I was in there. I can't tell from part names of the seal back towards the tcase is called the output shaft seal or tail housing seal?
I'm looking on rock auto if that helps

2 or 4wd?

4wd

YEAR???????
If you have 4wd you don't need a Transmission tail housing seal. Because the TC is where the housing would be. You do need the output seal. This seal is for the output shaft that connects the Trans to the TC. Also if 4wd you do still have a tail housing, it's what connect the TC to the Driveshaft, might be the same tail seal.. But IDK, I would order that seal as a part of the TC, NOT as if for the AW4