Steering Boss Removal

So what i thought would be nice and easy ;(.
I have brought a new momo steering wheel, thought i would do the right thing and count the splines on mine to see which boss i need.
Currently i have some cheap aftermarket momo copy, so took the wheel and nut off but cannot move the hub, should this just come off or am i missing some trick here??

cheers all

Some just pull off, some (like mine) feel like they're welded on. It's a bit of a lucky dip. A basic 3arm puller should do it.

i did try giving it a whack but seems solid

Do you have any steel box section lying around? Drill? Nuts and bolts? You could easily make a simple puller, just hitting it will probably not make it budge, hitting it while it's under pressure will be better.