Here is one hitch mast attachment assembly. This hitch mast attachment allows using the F135 and F145 series semi-integral plows with tractors equipped with draft sensing through the center hitch link rather than the lower draft arms. Models of JD tractors that this scarcely seen attachment are compatible are: 520 530 620 630 720 730 and 2010 The implement ball and cross pin shown with the part diagram is NOT provided as some center links already offer this. To install, use existing hardware on the hitch crossbar and the steering arm. Installation is very fast and quite simple. This kit is only compatible with F145H / F135H/ F145A / F135A/ 145A / 135A JD plows. Replaces the following OEM part numbers: 1x AA11477- Hitch mast 1x A12876 – spring attaching bracket 2x A12869 – mast attaching bracket 1x 17047 – spring This is new reproduction made in Ohio, USA. The parts have been powder coated (except for the spring which is black). I have many good used parts for the F145 series semi-integral plows; if you don’t see it listed just ask. The item “John Deere Moldboard plow hitch mast attachment F145 F135 2010 620 630 720 730″ is in sale since Thursday, March 28, 2019. This item is in the category “Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Antique & Vintage Equipment Parts”. The seller is “2cylfan” and is located in Ellis Grove, Illinois. This item can be shipped to United States.