The corn head grease mentioned is John Deere # AN102562. About 5 bucks per tube. Fits a regular grease gun.
Same as cotton picker spindle grease. They are both Type 00 grease.
I got mine from a local cotton farmer. They use it by the 55 gal drum. An "empty" drum still had close to a gallon in it.

~~ Jethro
1954 3100
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1951 3100 (gone) / 1956 4400 (still in the neighborhood) / 1957 6400 with dump body (retired) / 1959 3100 panel (in the woods junked) / 1978 Custom Deluxe K10 / 1993 S-10 4.3 / 2004 Chevy Crew Cab / 1945 John Deere H / 1952 John Deere B / 1966 John Deere 2510 / 1967 John Deere 1020