Re: Sea King 3.5 hp Owners Manual or Parts List 1967 Home › Forum › Ask A Member › Sea King 3.5 hp Owners Manual or Parts List 1967 › Re: Sea King 3.5 hp Owners Manual or Parts List 1967 cajuncook1Replies: 842Topics: 72 October 31, 2018 at 5:41 am #85230 I think your motor used marine grease in the lower unit. I maybe mistaken, but that is what is listed in the literature. Lubriplate 105 or Cornhead grease are some lower unit gear grease. If I am mistaken, someone will correct my information. Cheers, Cajuncook1