If you’re going to buy a puller….

junkyardhero said
one like this style will work, but expect to break it on the lower ball joints

If used properly they will last your life used infrequently.

Use it to apply pressure, no impact. Then place a hammer on one side of the knuckle and give a light tap to the other side.

No need to go all medieval on it.

light heat can help too.

Throw the pickle fork in the trash.