Abstract: A clamp for fixing a snowmobile for transport safely in a trailer. The clamp includes a clamping member swingable between an open position and a closed position. In the open position, the clamping member is in an out of the way position to permit a snowmobile to drive in one direction onto the trailer for transport and, at the destination, to continue to drive in the same direction off the trailer. The free end of the swinging clamp includes a quick connect and release connection. Such connection includes an over center connection where the free end is swingably engaged to a base. Each end of the clamping member is adjustable towards and away from its respective interacting portion of the base to provide for skis of different structures. Further, such adjustment keeps the clamping member in an orientation which is generally the parallel to the plane in which the skis generally lie. A relatively hard but resilient piece is fixed on the underside of the clamping member to confront the ski.