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 | 
