I removed the drc suspension last weekend and replaced it with pss9. Everything went well apart from one bolt! (Why does there always have to be one bolt?

After driving it for the last week I'm still having some issues, there seems to be quite a lot of juddering through the suspension and sometimes pedals when going over potholes. There is way to many on the roads now!! I was wondering if anyone had any ideas what could be coursing this? It had an mot the week before last and passed with no advisories.