Okay, after you take off center bolt, there is a large washer. It must be removed to use a puller!
I made a long video of my adventure. The last scene shows my end results! So, if this happens to anyone else, there is an answer! I don't have an impact wrench or anything to heavy duty. This worked!
Youtube video of my repair: http://youtu.be/v0MpD_83I1Q
BTW: I don't think they are welded. I think that is just from manufacturer. Mine had same darkness, but not welded. It was also on washer (as you can see in video I believe).