Installed 2.5" teraflex springs on my 2010 2dr last week. These were an upgrade from 19/60 rubi coils getting me an additional inch of lift. Nothing else was changed. The ride was perfect and smooth till yesterday. I had an aggressive vibration (not DW). Looking at the new springs I found out they had spun from the installed position. They were rubbing against the frame. Moving them back last night I got rid of the vibration and now they are not touching.

Two questions what do you guys think is causing the movement? What will correct this from happening again?

Both fronts moved the passenger side more than driver's. Also only did on road driving since install so no flexing to unseat them.

Thanks for any help!