They use a 16:1 mix and I keep my gearcase filled with John Deere Cornhead Grease.
When I made new prop and pinion shafts, I adapted a lip seal to the prop shaft but there wasn’t enough room or something to do the pinion shaft. This shattered my dream of being able to use oil in the gearcase.
http://www.greenpartstore.com/John-Deer … 02562.html
