Mark, the holes in each end of my toplink are 1"(cat II) in diameter instead of 3/4" (cat I) like is standard on our compact tractors. I had to grind down the swivels in width about 1/4" and then purchased bushings from TSC to adapt the cat II down to my cat I pins. I'm not sure what you mean about the swivel ball, but in the photo, the part on the right goes to the tractor. I'll attach a photo of the link installed so you can see how it goes. My cylinder is much larger than yours, but the photo is deceptive. I think my shipping weight was over 25 lb for the cylinder alone./w3tcompact/icons/shocked.gif