Hi there, i was just wondering if anyone could give a quick run down about removing the tie rods on my w123. Ive removed the nuts (im replacing my steering box) connecting the tie rods to the pitman arm, but then they seem totally stuck.

They are fairly new as well and I dont think its rust. Im just wondering before I break something, is there something else to this that IM missing? I see the threaded bolt has a hex depression in it so it made me wonder, do you have to unscrew the bolt part of the tie rod in order to separate it off the pitman arm?
Thanks for any quick replies.