Abstract: The present invention is directed to a load-rest that provides a secure and stable connection between a ground-engaging jack and a vehicle, the load-rest includes a frame bracket fixed to the vehicle and a clamp assembly fixed to the ground-engaging jack. The clamp assembly comprises a first clamp jaw opposite a second clamp jaw that is biased toward a closed position so that both clamp jaws clasp the frame bracket when inserted into an aperture provided therein. The clamp assembly also includes a tenon that extends in an upward direction to connect with a mortise in the frame bracket and provide a mortise and tenon joint therebetween, whereby the biased clamp jaws, in combination with the mortise and tenon joint, provides a secure and stable connection to the vehicle when a load is applied to the ground-engaging jack.