Stallion ST-156 Wear Sleeve Installer - 303-481 ZTSE4315 Alt.
Part of 303-S479
Tool can be used with a press but the best method is to draw it in slowly using the ST-155 longer bolt and nuts, along with your old harmonic balancer washer.
Applications: 7.3L Powerstroke, International T 444E, Navistar