Posted 3/17/2018 18:04 (#6647801 - in reply to #6647574) Subject: RE: 643 John Deere corn head
Illinois
NEILFarmer - 3/17/2018 15:38
Cluster gear in gear box on some x93 heads was stronger, would hold up to knife rolls better. I think 1998 was cutoff there not sure tho. Poly is nice, have a late 643 with poly, knife rolls, oil bath, it’s a nice head wish I had calmer knife rolls tho.
Fwiw I have heard that the blue tinted poly is the older heads with the weaker cluster gears.
643 John Deere corn head
