Here is a link to the guy who I got my shifter knob from. Just have to let him know that you want the Mazda MX-5 (10mm x 1.25 (many Mazda, Nissan, Hyundai, Kia, Mitsubishi, Ferrari)) thread pattern when placing your order. Has not come lose or rattled since I installed it.

http://www.ebay.com/itm/Billiard-Pool-Ba...=item54135da0a5


Charlie, Former Editor
Morgan Owners Group - Great Lakes