I know they are IH, but I have never seen an IH build sheet so I don't know if you could order them with the sidehill hitch or if you had to get it from the dealer. I have the manual for it and they consider it a "special attachment". I try to get manuals for everything I have and the only one I don't have yet is the operator's manual for it. They work very nice for hooking up something that isn't jacked up to the right height. Back in, jack it up to the right height, then just swing the drawbar over and drop the pin in. I have one on my MD, and my pap has one on each of his H's. I have used mine for plowing, but have never did a video of it on a hill. Because of using a small two bottom instead of a 3 on my MD, I had to swing it out to the right to get close to my tire and to get the plows to pull straight. I need to find a decent set of 3 bottoms....
I can do a video of it if anybody would like to see it? I haven't run the MD in a good two months anyway, she needs her excercise and I love to hear that thing run.