De Dion tube
（重定向自De Dion axle）
![de Dion tube used in a 1998 Ford Ranger EV](/Images/godic/202501/08/GSFRRearViewUnderCropped2237.jpg")
A de Dion tube is an automobile suspension technology. It is a sophisticated form of non-independent suspension and is a considerable improvement over the swing axle, Hotchkiss drive, or live axle. Because it plays no part in transmitting power to the drive wheels, it is sometimes called a "dead axle".