Abstract: An articulated ladder-like type traction device for selectively stabilizing the load and torque characteristics for use in the rear suspension system of a vehicle. The traction device includes a lower frame member adapted to be pivotally connected at one end to a vehicle chassis and pivotally connected at the other end to the rear axle of the vehicle. A second frame member is fixedly attached to the first member adjacent the first pivotal connection and extends at an angle in a generally vertical plane to the first mentioned frame member, and terminates in a pivotal connection to one end of a turn buckle type link arrangement. The turn buckle type link is pivotally connected at its other end to the rear wheel axle. An upstanding member fixedly connects the frame members adjacent the second pivotal connection.