How hard is it to get the upper control arm stud out of the top spindle hole on the front wheel?
Does it pop right out or do I need a specialty tool for removal?
I never did this before and don't want to mess anything up.

https://www.forabodiesonly.com/mopar/threads/help-with-upper-ball-joint-stuck-in-kuckle.421839/

Read this from another Mopar forum.
Basically the same question was asked there.

The problem with using a fork and a hammer is the arm is held in place by 2 rubber bushings.

For this method to work well, the arm needs to be held solid.

Can you unbolt it from the lower ball joint and remove the upper control arm by the bushings?

If it is still on the car, an easy way to do it is loosen the ball joint nut several turns but dont take it all the way off. Then hit the top of the knuckle next to where the ball joint is hard with the round end of a ball pein hammer. Most of the time it will come loose after a couple whacks.

Depends on what you're doing. If I'm in a wrecking yard pulling knuckles for a disc brake swap then I use a pickle fork and a 5 lb sledge. If I'm in my home shop working on my own car I use the FSM tool to pop things apart.

I've tried hammering, etc... then purchased the factory tool (from Mancini).. and it was easy... wish I had it before I tried the hammer.

i built a tool similar to the factory deal using a chunk of 4130 stock and a grade 8 bolt. i just snug it up good against the joint, a light rap of the hammer on the spindle, and pop ! works every time.