I have a Nodular 9 inch with 3.50 gears and a traction lock. This is all factory stuff. The gear has a D2 code and i think i remember seeing a D1 code on it somewhere also. The gears some pitting but may still be useable. I gave it a quick coat of red primer. If you want and numbers off of it let me know and where to look. Im asking $350 obo. It is in NW Iowa