Gary, if I were going to do this adaption; I would purchase the Pantera HUB from one of the vendors,(I believe Hall Pantera will sell a hub separately), and then Modify/Machine the hub to fit your Grant wheel perfectly. If you were anywhere near Manteca, California, I would welcome you into my shop to do the job. The actual setting-up would take much more time than the operation itself. Good-Luck with it! There's nothing better than a custom steering wheel in a Pantera. Myself, I chose the LeCarrea "Thick Grip". Hall sells them. All the best, Marlin.