I am certain someone must have the centerline measurements; I'll be pushing in all new brake fluid tomorrow, but I don't think this will provide the exactness required. No Mike, Pete isn't going into a shim business, but the idea of an individual cutout shim had been suggested by our friend in Southern Maryland, so I am simply building on that idea and throwing it out there. For the comment concerning 360 degrees of contact, I suppose 2 halves could also be machined, one on the top and one on the bottom with a fine hole or two drilled in the center connecting bar to snug the two pieces together before torquing the shims down.
Pete S.
I just finished flushing the brakes and I will opt for the individual standard shim cutout instead of the dual I had illustrated earlier. There is just too much in the way!