I think you are talking about a friction bar sway control. The clip pins hold the cups on each end of the sway bar on the smaller balls on the tongue and the hitch head, they are a loose fit. The lever you twisted on the sway bar is the one that tightens the brake lining pads to the slide part of the sway bar so it works.
Welcome to my home, that door you just broke down was there for your protection not mine.