This is not a completely new thread, but from reading previous threads the going spring rates seem to be around 500lbs up front and 325 to 400lbs in the rear. I contacted GC and with a 6inch spring the lowest I can go is 450lbs using their eibach springs. If I go to a 7in spring I can get down the that 325lb range for the rear. What spring lengths are being used 6inch or 7 inch.