Hey, I just put some Hotchkis springs, Bilstein shocks and PPM front end rebuild with poly bushings on about a month ago. I noticed today while going over some speed bumps that the front end sounds like an old creaky box spring in a mattress when compressing. It's pretty loud and can be heard from a distance outside the car even. I don't hear the sound at all when hitting normal bumps in the raod at higher speeds or when stopping/cornering. Only when I go over bigger bumps such as speed bumps. Would lubing the joints do the trick?