Disclosed is a towing aid (10) which may be easily assembled for multiple uses and disassembled for shipment, storage or transport and includes a variable width axle (24, 26) and a tongue with a variable height for the tongue hitch (12, 16) to accomodate various heights of vehicle hitches. In one assembly the towing aid becomes a car dolly with variable widths between the wheel wells and ramps which are mounted on a rotatable I-shaped frame (43) pivotal to and supported by the variable width axle. In a second assembly the I-shaped frame is removed and a flatbed trailer frame is attached to the axle. Each part is removably affixed to other parts and disassembled into a compact kit.