The 85W-140 is a gear oil, the "Corn Head" grease is a John Deere product that is rated 0 (Snapper recommends 00) on the scale for grease. I had read somewhere that Corn Head could be substituted for Snapper 00 but after buying 2 tubes I saw that it will not flow and could simply stand away from the gears in the case. I decided to add some gear oil to the tube I put in the YT gear case to either thin it or fill any cavities in the grease. Here is a picture of the grease that had been setting overnight.
Cannon
Cannon