I have new ball joints sitting here but had no intent of replacing since mine look perfectly fine and don’t move around. If the alignment shop thinks I need them I’ll replace them but I do not like taking the hun apart on these trucks. Dislike it almost enough to pay someone else to do it and I despise having someone else’s work. Too many factors.
The ball joints are okay most likely, the things we were talking about were correcting camber if you happened ot have out of spec camber. There are 2 easy ways to adjust it if you otherwise dont have worn parts
Shim the spindle or whatever the other guy said, to change the angle that the hub and then the wheels would be at
or using a bushing/insert/ball joint sleeve that that would place the ball joints in with a different angle/position which you would attempt to kick out the top or kick out the bottom depending on the camber correction needed
Without you attempting to have it aligned by a shop, I wouldnt worry about the camber too much. just get your wheels close and your steering wheel proper so your turn signal and the rotations etc all work right, then once its all looking to be done needing parts or whatever, go for an alignment. if they said you need corrections then it would be time to worry about the pesky details