Do you have a zoomed out picture? I was thinking transfer case or transmission, now I am stumbling as to what the picture is. Has to be transfer case as the dpf is in back ground

 

Then what is that seal on?

 

yep.... thats the transfer case... my bad.

 

I think I finally found the right part
https://www.partsgeek.com/catalog/20...rear_seal.html

Could someone help me confirm? I would appreciate it.

 

sure looks like the correct part to me, different style same function

 

I posted a link to the correct OEM part in post 13 above. There are two part numbers for the 11-16 F250 one is for a slip yoke the other is for fixed flange. The difference in part numbers is as follows.

BC3Z-7052-C = Slip Yoke
BC3Z-7052-B = Fixed Flange