a wedge assembly for supporting automotive doors , particularly pivoted tail gate doors and sliding van doors , which is mounted between surfaces that are not horizontal so that the load applied to the assembly includes a vertical component . the assembly includes a striker member and a wedge member , the former being mounted on the vertical side pillar of an automotive door frame , and the latter being mounted on the side pillar of a pivoted tail gate or sliding door . the assembly provides both vertical and lateral support for the door and door frame and prevents misalignment between the two which can otherwise develop over the life of the vehicle .