Thanks, guys. I had a feeling I'd had to resort to trial and error. I'm making the bracket out of 6061 aluminum block. I think that should be strong enough. Curious, what type of cars did you do your conversions to? I ask this to gauge the weight (and therefore) added stress the pick-up points will see. I have an 88' Mazda RX7 Turbo and I'm adding 14.5" rotors. Overkill, maybe, alright most likely, but the whole set-up (rotors, calipers) are lighter than what I have now and my track wheel/tire set-up will clear this adaptation.
~M
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