Abstract: An overlash jig that holds its position when it is detached from a vehicle during the time the tow rope is being routed around an obstacle. The jig includes a housing and a moveable block mounted for movement relative to the housing. A spring member pulls the block toward the housing so that when the tow rope is disconnected, the existing cable is tightly gripped between the block and the housing. When the towing resumes, the forward and downward pull generated by the towing vehicle moves the block away from the housing and rollers on the jig then facilitate its towing along the extent of the existing cable.