Help with upper ball joint stuck in kuckle...

Hello StevieMac.
I have had success using two hammers.
One held tight to the knuckle and then use the other to strike the opposite side of the knuckle with the other hammer.
I believe its called "ringing".
I use two hammers like this
Project Pro 2lb Fiberglass Handle Sledge Hammer
You can also warm up the knuckle a little. NOTE: if you make it to hot then hit it you will damage it, also do not "heat" it just warm.
Use caution not to beat up the knuckle.
An old timer taught me this trick, he said this is how they get the brass prop off a steel shaft on a boat thus the term "ringing".
Hope this helps
keep us updated !!
happy Mopar :)
Arron.