Posted 7/27/2015 13:12 (#4702353 - in reply to #4702196) Subject: RE: Macdon 920 or 922 headers pros and cons?
Manitoba, Canada
If I remember correctly they updated the sickle drive gear boxes from a JD design to their own. I imagine the different boxes probably has more to do with the year than model number. My 922 has the JD boxes on it and they have never given me any trouble yet.