Abstract: A damping member includes a damper bracket fixed to an upper link bracket, a mass bracket Joined to the damper bracket via an elastic body, and a mass for vibration control supported by the mass bracket, an upper link bracket is provided on a rear axle housing for supporting one end of the upper link supported at another end thereof relative to a vehicle body, the upper link bracket has a wall portion for accommodating the damping member therein, and a stopper portion is provided on the damper bracket in oposition to an end part of the mass for enclosing the mass in cooperation with the wall portion of the upper link bracket.

Abstract: A system for detecting an operating state of an automobile free-wheel hub mechanism used for connecting and disconnecting a driveshaft to and from a wheel hub by engaging and disengaging a fixed gear firmly connected to the driveshaft for rotation with the driveshaft with and from a movable gear slidably splined to the inner periphery of a cylindrical housing of the wheel hub, comprises sensors for detecting a revolution speed of a road wheel having the wheel hub to generate a wheel-speed indicative signal, another sensors for detecting a revolution speed of the driveshaft to generate a driveshaft revolution-speed indicative signal, and a controller for detecting an operating state of the free-wheel hub mechanism on the basis of a deviation between a value of the wheel-speed indicative signal and a value of the driveshaft revolution-speed indicative signal.