I have Ground Control coilovers with Tokico Blue shocks/struts. I also have a rear progress sway bar with new urethane bushings. The drop on my car is set to where each fender is maybe a half-inch below tire-level. Problem: I have a loud squeak sound coming only from the rear of my car when I hit small bumps/potholes. It also happens when I slowly drive into slanted entrances into driveways, parking garages, etc. I have done some research and everywhere I look says it's the urethane bushings. I did not see anything in the installation manual about greasing them, but I have read this is the problem, lack of grease. Also, I have a VERY slight rattle coming from my front, left wheel well when I go over a gravel patch or something. I know everything was tightened down good and know it isnt the dust guard. Did anyone else have the same problem with the rattle or the bushings? How did you fix it? Thanks in advance!