dist. drive dog tip

So, I'm gonna try to find someone with a dist. tester to see if the shaft is bent; but I'd like to dismantle it completely so I can clean everything. How do you get the drive dog pin out. Any tips, it's really stuck in there.

All I have ever had to do is put it in a vise and drive it out with a drift punch. They can be a little stubborn sometimes. Sometimes they will drive out one way easier than the other. Be sure and mark it so you get the off set right and it want be 180 out