The Ruckstell Axle was one of the few Ford factory approved accessories for the Model T. Indeed, it is every bit as useful today as it was when introduced in the time just after WWI by Hall Scott. Without a doubt it is the single most useful accessory ever devised for the Model T Ford. Many books and magazine articles have been written about the Ruckstell Axle. No question the best of these books is the one written by Glen Chaffin of Corona, California. It is the “bible” of Ruckstell repair.