Amazon ones didn't work. Even the nut would get stuck under pressure. Amazon broke when I was removing it. Piece of junk.
Got two from Napa.
Bigger one was 55-59mm in diameter.
Too big to fully compress the bushing, but good enough to compress it so I could put on the smaller one.
Smaller clamp was 51-55, was perfect to compress the bushing all the way. Also they worked so much better, and so much easier to tighten and loosen