I have steeda springs and sway bar, so I can't speak to the H&R setup, but while close, on my vehicle they do not touch. if you hear a clinking noise, that should be loud enough to leave marks on the spring powdercoating. if the springs are scratched, there is your culprit but i am leaning towards it being something else. I have driven my truck HARD and even got it to powerslide a bit a couple times to test out the setup and there is no contact between the bar and springs.