I put in a MS spring in my '04 1500 classic along with both of Judge's washers. Rented an electric impact wrench to remove the Nut, came right off with 2 hits of the trigger, I put in the 2003 Mean Streak clutch spring, the one you want is for 2002 or 2003 MS, also you can install Judge's washers, I did not experience any difference in clutch lever pull and the downshift clutch slip is not an issue with Judge's washers, my bike had the stock indexing washer on-top of the clutch spring, I just re-installed it along with Judges washers, all is good. I got my spring and right side cover gasket from Ron Ayers.com
Also some are installing a Barnett clutch spring to a stronger spring than the 2003 MS spring. The Barnett spring is a bit thicker.