I installed UMI lower and upper control arms in 2011 and by the time I got my car running in 2012, I noticed a lot squeaking. I wasn't sure of the source, so I started off with replacing the rear lower and upper control arms and rear swaybar with a H&R parts. It made some difference, because the bushings were shot in the rear upper and lower control arms. I was still hearing the squeaking, so I installed body bushing from Kriban. That made a lot of difference, the best $40 I ever spent on the car. However, still hear squeaking from the front. Since the UMI have poly bushings are they more prone to squeak and is there anything that can be done about it?