Does the new pivot bolt length matter ? I ordered what I thought was the correct bolt but it is the short one and my swing arm is the one designed for rubber o rings and not Welch plugs. I didn’t even think about it until after installation and installing the Kiegler modification. I have a long pivot bolt but it doesn’t have the two flat spots. Will the shorter bolt be sufficient. It concerns me that it’s not making full use of the bushes but ? Also if I need to use the longer one I suppose I’ll have to cut out shallow flat spots .