A vehicle includes an engine, a front frame, a rear frame, an intermediate frame, a front propeller shaft, a rear propeller shaft, and a wet oiling brake. A pair of right and left front lower arms are swingably mounted to the front frame. A pair of right and left rear lower arms are swingably mounted to the rear frame. The intermediate frame is located between the front frame and the rear frame. The front propeller shaft extends forward from the engine and the rear propeller shaft extends rearward from the engine. The wet oiling brake is located within a region defined by the intermediate frame in the front-rear direction and brakes a rotation of the front propeller shaft.

A suspension system for use between a frame and a beam axle includes a ride-height adjustment mechanism connectable between the frame and the beam axle. The adjustment mechanism includes an upper spring seat configured to mount to the frame and a lower spring seat configured to mount to the beam axle. A spring is interposed between the upper and lower spring seats. An electromechanical actuator arrangement is configured to move the upper spring seat relative to the frame or the lower spring seat relative to the beam axle so that a distance between the frame and the beam axle can be increased or decreased.

A work vehicle according to the present invention includes left and right axle cases of a rigid axle type, and left and right suspension mechanisms movable in the up-down direction relative to body frames and separately supporting the left and right axle cases, respectively. The work vehicle also includes (i) a first projection projecting downward from the left or right one of the body frames, (ii) a second projection projecting upward from that position on either the left and right axle cases or a frame body integrated with the axle cases which is opposite to the first projection in the left-right direction, and (iii) a lateral rod having a first end connected with the first projection and a second end connected with the second projection.

A vehicle shock absorber system configured with more than one pressure cylinder that provides advantageous damping characteristics for different loads. There is provided a vehicle shock absorber system having a primary pressure cylinder including upper and lower primary chambers separated by a primary piston head, an auxiliary pressure cylinder including upper and lower auxiliary chambers separated by an auxiliary piston head, a first connection conduit connecting the upper primary chamber and the upper auxiliary chamber, a second connection conduit connecting the lower primary chamber and the lower auxiliary chamber, and a cylinder valve arrangement configured to regulate fluid flow to the auxiliary pressure cylinder.

A vehicle shock absorber system configured with more than one pressure cylinder that provides advantageous damping characteristics for different loads. There is provided a vehicle shock absorber system having a primary pressure cylinder including upper and lower primary chambers separated by a primary piston head, an auxiliary pressure cylinder including upper and lower auxiliary chambers separated by an auxiliary piston head, a first connection conduit connecting the upper primary chamber and the upper auxiliary chamber, a second connection conduit connecting the lower primary chamber and the lower auxiliary chamber, and a cylinder valve arrangement configured to regulate fluid flow to the auxiliary pressure cylinder.

A vehicle suspension system may include a semi trailing arm, a coilover damper and a distributed jounce response assembly. The semi trailing arm may be operably coupled to a chassis of a battery electric vehicle (BEV) at a first pivotable connection and a second pivotable connection. The semi trailing arm may also support a rear wheel of the BEV. The coilover damper may be disposed between the chassis and a third pivotable connection on the semi trailing arm. The distributed jounce response assembly may progressively distribute a jounce load to at least two different locations within the system.