A drawbar assembly having a rear draft stop engageable with a block out member. A tapered wedge member engages a tapered surface on the block out member. A follower member engages a front face of the tapered wedge. A concave surface is formed in a front face portion of the follower member. Such follower member is movable within the open end of a yoke casting. Such yoke casting includes first and second side walls, a top wall and a bottom wall. A first and second aperture are formed through the top wall and bottom wall, respectively. A pair of front draft stop members engage a respective side wall of such center sill. A drawbar having a butt end portion is movably disposed within a second opening in such yoke casting. Such drawbar includes a vertically disposed pin receiving opening formed in such butt end and a two piece pin bearing block having a hemispherical outer surface is disposed in a hemispherical recess formed in such pin receiving opening. A vertically disposed pin member is disposed within such first aperture in such top wall of the yoke casting, such pin receiving opening in such drawbar and the second aperture formed in such bottom wall portion of such yoke casting.