Abstract: A vibrator assembly is described for use with a concrete paving machine moveable longitudinally along a body of poured concrete. The paving machine includes a machine frame and a finishing carriage unit moveable transversely back and forth across the body of concrete. A plurality of support members are mounted to the paving machine frame and include extension members structurally arranged to move between a collapsed position and an extended position. A vibrator truss support frame member is mounted to the extension members and a ganged vibrator carriage assembly is mounted to the vibrator truss support frame member and structurally arranged to move transversely back and forth across and through the body of concrete.