Doctor Diff Adapter with Wilwood Master Cylinder?

Has anyone used this adapter from Doctor Diff for installing a dual reservoir aluminum Wilwood master cylinder? I emailed them and they said it depends on the diameter of the master cylinder where it passes through the adapter. They said their center bore in the adapter is 1.45". I put the calipers on the wilwood when I got home and it shows 1.48". However, the calipers are the cheap ones from Harbor freight and could be a little off. Tape measure looks like just under 1.5". I'm not set up to bore out the hole and the bracket comes finished. Rather not mess that up. Of course this is the only dimension not shown on the Willwood website. Unless I'm just not seeing it. Anybody use these together or have any input?

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Author: admin