2 pcs of double lip grease seal 168233TB for 1 3/8” L68149/L68110. ID 1.688′ x OD 2.332”, for use with most 3500-4200 lb. trailer axles. Dimension: I.D. 1.688” x O.D. 2.332” x Width 0.313” Type: Double Lip, Spindle #84 Use for Bearing L68149/L68110, 3500-4200 lb. Trailer Axles Package: 2 pieces Seal Cross Reference: National#473317/47140; NOK#AF7616EO/AD2527EO; Chicago Rawhide#16657/1665