Abstract: A wheel suspension assembly includes first and second trailing arms (28, 29) pivotally suspended from the chassis (2) at one end and to a stub axle (26, 27) at the other end. The stub axles are each pivotally mounted to the center of a leaf spring (40). The opposed ends of the leaf springs are connected by a pair of links (37, 41), one link (37) being supported at its center by a pivot at the distal end of a bracket (36) extending from the chassis.

Abstract: A vehicle, either powered or a trailer (1), having a yoke or U-shaped chassis (2) and a drop tray (3) with a tailgate (4) at the rear of the chassis (2) either hinged to the sidewall (6) or to the drop tray decking (5). The tray (3) has parallel posts (13) extending in a general upward direction while the chassis (2) has hollow tubes (12), which mate with the parallel posts (13). Any suitable lifting mechanism could be employed, however hydraulic cylinders (21) are preferable located at each corner of the chassis (2), to operate simultaneously to raise and lower the tray (3) such that it maintains substantially the same orientation throughout its movement between its transport position, above the ground, and its loading position, in which the tray (3) engages the ground.