I just installed my new Tokico HP's along with the Eibach Pro Kit for Sedan about 3 days ago. I've been getting this creaking/thumping sound from the rear. It happens when I drive over any uneven surfaces. I've took a second look yesterday by taking everything apart and putting it all back together, but the sound still remains. Is this normal or am I missing something? Any one else have the same problem? TIA guys all help is appreciated.

 

Problem solved. Ran to a friend's house where we took apart the suspension one more time to see that I had misaligned the bumper stopper. I lose.... o well, time to have fun with the new suspension.