Actually, I did get that special round brass nut off. It was not tight - but the internal spring will not fall out of the chrome fork tube. There is a hex fitting at the top of the tube, but I'm at a loss. It appears as if it's press fitted or part of the fork tube. Must I remove the spring too? Are there any more fittings inside? My new tubes from Hitchcocks came with new springs, they slide out easily with their new tube pairs. Wondering if I can use them as they are.