The OTC 6885 installs the rear seal and wear ring on crankshaft. It's designed to eliminate lip flare on the wear sleeve and install the seal properly. Similar to OE part number 303-770/
Applications include Ford vehicles using the below engines:
2003-2010 F-250, F350, F-450, F-550, Excursion
2004-2007 F-650, F-750
2004-2010 E150, E-250, E-350, E-450, and Low Cab Forward
4.5L, 6.0L, 6.4L and VT365-MaxxForce7 Navistar International
Installs rear seal and wear ring on crankshaft
Eliminates lip flare on crankshaft wear sleeve during installation
Ensures crankshaft wear sleeve seal is installed properly
For 2003-2010 F-250, F350, F-450, F-550, Excursion
For 2004-2007 F-650, F-750
For 2004-2010 E150, E-250, E-350, E-450, and Low Cab Forward
For 4.5L, 6.0L, 6.4L and VT365-MaxxForce7 Navistar International