I had to have the special tool to remove and replace the nut on the left fork of my VTX. But that was to replace the springs. For the seals and bushings I didn't have to remove the nut because the bushings and seals will slide over it. That being said the forks on my VTX are inverted, just opposite of the 310 GS. However looking at the diagram on the previous page I don't see how removing the nut is required on these forks either. Remove the dust ring and then the little cir clip just on the inside of the tube . This will release the tube from the fork. Once that is done the seals and bushings should be visible. Remove and replace just like it shows in the diagram. Just to be clear, the seals and bushings are at the bottom of the fork. Section 7 in the diagram show the bushing and slider bushing. Section 8 (from the bottom up) shows the dust seal, the cir clip, washer , then the oil seal. Make sure to put these parts in the same way they came out. That washer has a flat side on it and the oil seal needs to go in with the little bumps on it facing out. (or down in this case.)