An ejector blade carriage mounting system for connecting the ejector blade carriage to the ejector blade in a manner to accommodate variations in the fabrication of a truck body in which the ejector blade is utilized by connecting the ejector blade carriage to the ejector blade through a tri-pod arrangement of mounting bolts which incorporate shims and spherical seating washers to compensate for such variations and to ensure true axial loading of the connecting bolts. A fourth connecting bolt is provided to help lock the assembly in the desired position once the spacial accommodations have been effected.