Lower control arm issues

you can spray them with liquid wrench or something similar (lots of folks here use something called p-b blaster] and then work the pivot up with the adjuster and down with a rubber hammer until they work freely and then try to work anti-seize or lithium grease into the joint so it moves freely. It should pivot without interference. My biggest worry would be that a big jounce would put the assembly where it is really bound up and stuck while you are driving.