Please help me out guys...I just installed Eibach pro kit springs on my 05 base model. Everything went smooth except now when I drive over even the slightest bump at any speed there is a clunking vibrating kind of noise coming from the rear right. I wonder if maybe I didn't seat the spring properly in the saddle. It doesn't seem to affect the cars driving or handling but it's pretty loud and sounds bad. I know this spring choice is popular for our Crossfires so has anyone else had this problem? Any experience or advice would be greatly appreciated, thanks.

 

Mine did that after I installed KYB shocks. I tightened up the shock and it stopped.

 

check the rear sway links. Make sure they are still both connected and that neither are broken. The stock link is plastic and the sprung weight can stress the stock links. I had the same problem and found that the nut had come off my sway link. I jacked up the rear tire until it lined up, found the nut off the old links I had replaced and locked it back down.
good luck

 

Thanks for the info guys...turns out that spring was just rattling against the inside of the top spring perch. I pulled the spring back out and slid some
3/4 in. heat shrink over the last coil and a half, gave it some heat and reinstalled the spring. After that the noise went way.