TSR_PARTS
Guest
THE WIDE SPREAD FROM THE 7720 WIll NOT FIT THE 6620 COMBINE. THE UNIT FROM THE 7720 IS ABOUT 11 INCHES WIDER. IT AlSO HAS DIFFERANT FIN lOCATIONS. WE HAVE WIDE SPREAD KITS FOR THE 6620 COMBINE STRAW CHOPPER. CHECK OUR WEB SITE WWW.TSRPARTS.COM go to the links to find a dealer near you.