In Reply to: 620F posted by JD9500 on September 23, 2004 at 20:58:01:
I believe Lankota (www.lankota.com) has all the necessary hardware for conversion and Headsight (www.headsight.com) has a control box that converts the height control signal over so it can be used on a dial-a-matic combine with no modifications on the header.
I'm not sure of the cost.