Ford called it a FLEXO-HITCH. They're good discs. I bought one just as you describe with 32 discs about 5 yrs ago, paid $450. I'm pulling it with an Oliver 1655 so it is no sweat. I think a 3000 could handle it in most conditions but it would be at the limit, especiallly in soft plowed ground. You might need a little weight added to the front end/wheels. I know I wouldn't want to try it behind my Ford 2000, a 4000 would be better.
According to the owners manual they could be equipped with either white metal bearings or something called "anti-friction" bearings. Mine has the white metal bearings with 2 grease fittings per bearing. There was a chunk out of one of the bearing halves but I've been using it like that 50-100 acres per year with no problems so far. I've worn down the front cutaway discs they now need replace, they look like 18" blades.
Does anyone know what the "anti-friction" bearings were? Were they sealed ball bearings with no grease fittings? Were they any good? The picture in the book isn't too clear.
Another question. Are any of you familiar with a Ferguson 3-pt model 22 disk with white metal bearings? I have one with 24 blades that I've used a lot behind the 2000 but the bearings are getting shot even though I keep them greased. It could be from running it in soft somewhat sandy soil. The bearing halves and spools are still available from Agco/MF but they cost an arm and a leg, maybe close to $100 for each piece, so X8 it wouldn't pay to replace all. Is there a cheaper source for these parts or some other way to repair it? The bearings are so worn that some of the blades are rubbing on the frame. I'm using it again about 50-100 acres per year.