Thank You A. Rosich for the history and the warm welcome. I did notice that the previous owner had just replaced the shocks for Bilsteins. I believe that the are Heavy Duty. I got under the car in the driveway and saw the Bilstein sticker on the rear shock with the part number B36-1385. I can't see the sticker on the front right now. I 'll check it out when I get my oil changed.