Tap tap tap. You can generally gently get them off. If that's not the case then yes, you can buy new ones. I'm sure Chase has them on the shelf or call Napa.
I went to autozone and they didn't know what part I was talking about. They looked for the axle seal and had a smaller one but it didn't have the big ring on it to keep the junk out of the axle tube. Anyone know the part number for it?