Rear output seal for Dana 21 transfercase in 1966-76 Ford Trucks.
Attributes:
Housing bore diameter (inch) 2.623 in Housing bore diameter (mm) 66.6242 mm Shaft diameter (mm) 39.6748 mm Shaft diameter (inch) 1.562 in Type Oil Seal Style 47 Design M2LS47 Outside Diameter METAL Lip Contact MULTI Lip material S (NBR - Nitrile) Garter Spring YES Width 0.312 in 7.9248 mm