MM makes a kit for the bilsteins. Call them for suggested spring rates as it matters what suspension setup you currently have, plan to have, and what you plan to do with the car.
Edit to add my spring rates:
For my 50% OT car with a Three Link setup, MM recommended 325 lb/in up front with 250 lb/in out back.
93 LX, Boosted and Braked
Last edited by EDS_5_OH; 07-21-2005 at 05:16 PM.