I am going to do some work on my coil-over suspension and am considering also installing the Unobtanium bushings I bought from Jim LaBreck over a year ago, which have gathered dust on the shelf in my garage. One question for those who have made this modification..... How much additional road vibration is transmitted? My spring rate is so high now that on washboard roads at speed, the car tends to skip, so if there is a significant increase by adding the bushings, I will need to get a set of softer springs. Any advise is appreciated.
Ron A.

 

there is a good thread from max cooper (not sure if its 1 word or 2) about these bushings. might want to search for it.