Abstract: An auxiliary towing hitch assembly and hitch extension for attaching a trailer to a towing vehicle such as a pickup truck, having a conventional towing hitch and mounting a body, such as a long camper body, which overhangs the rear end of the towing vehicle a distance such as to preclude direct attachment of the trailer to the vehicle hitch. The hitch assembly comprises a hitch extension in the form of a tow bar having front coupling means for releasable attachment to the towing vehicle hitch and rear coupling means for attachment to the trailer hitch. This hitch extension is removable to permit direct attachment of the trailer to the vehicle hitch when the overhanging vehicle body is removed.