I am going to be building a custom tool bar for hilling potatoes. I will be using the AgriSupply discs and Buckeye Tractor clamps to a 2x2 bar, unless someone talks me out of it.
My question, should I make it sleeve hitch or make it so it attaches right to the tractor? Tractors are IH Cub Cadet with their three point hitch and rear lift, and a Ford 80, who's angle steel frame is close enough to the Cub Cadet's three point that I use the same sleeve hitch interchangeably.
The advantage of the sleeve hitch is I can use it on future tractors with sleeve hitches, and I don't have to make any special lifting aparatus, just the sleeve hitch.
The advantage of skipping the sleeve hitch is it eliminates the hitch, so less to bend or break when it is in my heavy clay. Less play with one less connection. Also, no hitch means I can move the disks one foot closer to the rear tires, which is an advantage on uneven ground. I have had my moldboard plow come out of the ground when the front end goes down hill.
Is hilling in heavy clay enough stress to consider eliminating the sleeve hitch?
Do hilling disks need down pressure, or does their shape draw them into the soil like a plow or Brinly cultivator?
These are the disks I am going to get.