A biasing apparatus attaches to an agricultural implement comprising an implement frame mounted on front and rear wheels for travel in an operating travel direction, and a floating hitch assembly pivotally attached to the implement frame. The apparatus includes a tether attached to a rearward frame member of the implement frame, and attached to the floating hitch assembly forward of the hitch pivot axis such that the tether extends under a forward frame member of the implement frame and under the hitch pivot axis. A bias element exerts a main bias force on the tether to put the tether in tension drawing the floating hitch assembly toward the rearward frame member such that a downward bias force is exerted on the floating hitch assembly and a downward bias force is exerted on the rear frame member, and such that an upward bias force is exerted at the hitch pivot axis,
