between the plow manuel this site and the owners manuel i finaly got this figured out, what im seeing is the manuel depth control for maintaining the plow depth, my new/old tractor does not have this on it, and the manuel says not to use the hydro control to control the plow depth, so i guess i need this assembly, i looked on ralph's cubs as well as tmt, and cant find it, i found these sites by a internet search on my own, as im new to cubs, do any of you have other sources for this stuff? or even have one? hope im not being a pain, wife wants to plow a few rounds and put in some squash, info sought, thanks