Thanks for the link, but that is a standard after market job, which may or may not work. The genuine kappa Coupe gear knob has a cup which comes up with the lever, and into a brass ring, in the knob, where it meets a spring. It is very slick, and looks good, when it works. I have an after market thing on, at the moment, but it looks awful, and not good to handle. I had to do something, as the Kappa is my only car, and is in daily use. My new Delta was sold, about a year ago. I am hoping that the ones from ebay might work a bit better.