If what you are trying to remove is in the axle bore itself then it is the seal or the bearing and you may need a puller.
This may be the case, I'll try to get better pics to post.
It seems there is a seal in the center of the flange. Just went out and got a couple new pics, I'll upload them after I download to my computer and resize.
Here's the end of the axle, note the bolts, there are 4 per side. There is a seal with a tapered bearing behind it that holds the half shaft. I am not sure if I need to remove those first, I might be able to use a puller from the inside, just need to resetup the puller.
A peak inside, there's a tapered bearing behind the seal.
