a wheel chocking assembly that is especially suitable for securing a wide variety of automobiles to the deck of a railroad car includes a polyester strap member adapted to conform to the shape and extending over the top of an automobile &# 39 ; s tire which is coupled to a pair of chock members formed as collapsible wedges and positioned in front of and behind the wheel . in one embodiment , the wedges are rotatably coupled to a pair of channels extending the length of the railroad car , and are collapsible for positioning of the automobiles during loading . another embodiment utilizes a pair of wedges which are adjustably mounted in a telescopic fashion to frames extending inward from a channel attached to the deck of the railroad car at its sides , the channels being adapted to permit the frames to be swung up and out of the way during loading and unloading operations .