I have two 5' brush cutters, one a Brush Hog and the other a King Kutter, both bought used. The King Kutter uses a chain for the top link and the Brush Hog has a chain from the top link mounting point to the back. Both work well in these hilly Ozarks. -- Don Bowen KI6DIU http://www.braingarage.com/Dons/Travels/journal/Journal.html