I got it. I was using a piece of wood as a buffer between the hammer and the pin. I put some WD-40 on it and it still would not budge. I finally got pissed off and wacked it directly with the hammer and it flew out. I replaced the sprocket and the sprocket shaft seal with no further issue. Now I have to wait until tommarow to try it out. (its a little too loud to be drivng this late)
Thanks for all of the help!!