Posted 7/14/2015 21:47 (#4680253 - in reply to #4680238) Subject: RE: JD 643 and 693 corn heads, what to look for; thinking of adapting to Gleaner L3
Biggest difference is probably that 90 series had poly snouts, 40s were steel. Very very little difference between a late 40 and early 90 otherwise. They are both very reliable heads.