For JD 60/90-series no-till drills. (Right-hand unit.) Installation requires either welding on a tab (that holds the lift cable) to the frame above each row, or drilling and tapping a hole to fasten it (we have high-quality taps for sale, and will soon have a video showing how to do this.) Box drills require extra support tubes (for the lifting cable) to be installed ahead of rockshafts. 50-series requires different version (see AW.501 & 502). Not suitable for corn stalks–must be locked up. Note: Exapta doesn’t stock but a few of these for demos; it takes 8 – 9 wks to get orders from Australia and shipped back out to North American customers.