Elevator control question

I am trying to set a elevator control rod to move when the elevator moves up and down. Do I use Keyframe or stoke animation to set it to move in the right direction when the elevator moves? I hope I got the names of these parts right, if not I'm sorry and I have incerted a picture to help figur out what I'm talking about.
Thanks guys
Chris[img]URL[/img]

Thanks guys
Chris[img]URL[/img]
