Abstract: A three-wheeled single driver-passenger vehicle having a single wheel journalled at the front of the vehicle frame and a two-wheeled rear axle assembly having comparatively large diameter wheels at the rear, has the axle casing pivotally supported by means of a sleeve bushing affixed to the axle housing being journalled on a pivot post extending upwardly and rearwardly at an angle from and with respect to the vehicle frame, whereby turning of the vehicle about a short radius, with good tracking, is accomplished by the driver-passenger simply shifting his weight to one side or the other.