Posted 6/27/2018 16:35 (#6837601 - in reply to #6837122) Subject: RE: Deere 6620 Titan II Corn Head 443 or 643? HI Tin or low Tin
I used a 6620 with a 6 row in irrigated corn for a number of years, and got along well. I put on axle extensions so the tires ran between the rows. I'm not positive but I think the 7720 came with extensions that also will fit the 6620. With bin extensions I could make a 1/2 mile pass in good corn.