Abstract: A stub axle assembly for mounting a vehicle body on a supporting member such as a molded plastic ball. The assembly includes a stub axle which seats within and is locked by a dimple and slot arrangement for rotation with an inner bushing of molded plastic. The inner bushing rotates within an outer bushing, also of molded plastic. The external configuration of the outer bushing is that of a tapered hexagon and it wedges in a correspondingly shaped receptacle in the ball wall.