Dan, Why do you want to replace the stock springs with stock? Are the old ones tired? If yes, how can you tell? The reason I ask is that my 864kcsq has the original stock springs too, but also has new Koni's. I wonder if my springs have lost some of their spring and have no reference to judge gainst. bye, DC David Conner Columbus, OH '87 5KS, '89 100E, '86 4KCSQ