I got back on this project and finished up a set of rear shock plates with a double shear mount for the Koni shocks. I used a 5/8 hole in the bracket so I could use a 5/8 diameter mounting bolt. The Koni engineers used the wrong hole size in their shocks so I just adjusted my bracket to fit. A 5/8 diameter bolt is way overkill for this application but sometimes you have to do what you have to do.