Wildbill, I've got the same color C5. From the description of older C5s belonging to others, I think you might be pleasantly surprised. On mine, I've noticed a several nylon locking nuts, including one on the rear axel. It takes the place of the old castle nut. In the 600+ miles I've put on her, I've only found one nut that came loose. And that was on the exhaust.