I have been beating the hell out of this center pin for hours, and it will only move about a 1/4". For those out there yes I did remove the retaining bolt. The history is I went for a diff fluid change and when i removed the cover a whole pinion tooth fell out. Really threw a monkey wrench in my machine and now I cant even get out something that should just pull out. I have been thinking of putting a 2 jaw puller and pushing the pin through. I am now thinking of putting some sort of locker or limited slip carrier in if for some reason i cant remove this one without damaging it.