Half Shaft don't want to come out

Trying to send my axles out to DSS because of what they will need to ensue in the near future.

The problem is they WILL NOT come off. They are supposed to be easy to get off, but absolutely will not come off. We tried a tool from Advance that is supposed to make it easy, nope. Tried heating them up, nope. Tried impact tool, nope. Tried banging on it with hammers, nope.

Has anyone else had this problem or know someone who has? Any ideas?

I wonder if the hundreds of drag strip launches had anything to do with this.