Help with idler arm

I bought a moog idler arm for my 1973 dart sport. While trying to install, I noticed that the two washers included with the arm will not fit on the k frame. It's pretty snug without them. Also the end of the arm absolutely will not fit into the center link the way it's designed. The factory end entered the center link from the bottom. The moog enters from the top. It's almost as if the hole in the center link is tapered. I want to grind it out a bit to make it fit but before I do, any ideas lol?