Originally Posted by
GrainBrain
Let it soak in some solvent over night, I love PB blaster. Then like others mentioned gently tap it out with some kind of small punch. Easy.
I'm not sure exactly where you're located but there's great places in Ames and Des Moines that I know of who have the tools that could pop that out in a jif
Edit: On second thought, probably not that easy or a "jif" 
but soaking in solvent should help
If I would have gotten up earlier I could have sent it to Des Moines with a couple of salesmen that went there this morning. I'm taking it to Lakeside Cyclery today and have him look at it. I have PB blaster and I will try that before I break out the drill.