Originally Posted by MI1XFIRE
The only thing I can tell you is that he's right about tightening bushings. It is common practice to tighten suspension components with all four wheels on the ground. I even take it a step further by compressing and releasing the suspension a couple of times before tightening it down. You can even have someone sit in the trunk while you tightening it.
IMO that would be the first thing I would try. Good Luck.
I was thinking the same thing, they are compressed right now I have 6 concrete blocks in the back. I just got off the phone with a dealership, I had asked them if the SRT6 upper spring cups were taller than a regular Crossfire. They could not give me an answer, but he did say there were 3 different part #'s, but it gave him no measurements. So now I'm searching the web trying to find these part #'s to get some measurements.