I have a Speeco quick hitch and love it. Matter of fact, I never take it off. works with my blower, back blade, middle buster...etc... like someone else mentioned, with the proper bushings, there really isn't much "play".
How does the top link of the I-hitch / Quick Hitch keep an implement from driving the link off of the bushing? I can see the lower arms have a keeper that lock the lower half in, but nothing on the top link I can see.
Right, every 3 point attachment that I have seen has rigid frame so that the top pin can't move up or down from the bottom pins.The bottom holds both if it can't come out the bottom because it's locked in then it can't raise out the top