I apologize. I don't visit here as often these days.
I don't hv the exact dimensions of the adapter size it was an odd bracket. It's more of a spacer and allows you to move the mounting hole over for the M3 caliper.
Also, I never tried it with a regular E36 so I'm not sure if that will work but it's worth a try and could make it more on a budget. If anyone knows that all E36, except the 318ti, share the same caliper mounting points that will help.
If enough ppl are interested I can have more made as well. Unless you want to make them yourself that's fine too.
I used aircraft/space grade aluminum with the best resistance to corrosion, heat, and best strength overall.
I also had to modify the caliper carrier. Had to grind off about 1-2 mm from the middle, where the rotors sits in between. The brackets aren't 100% perfect so that's why I had to do that. If has off by a hair, and to prevent the caliper carrier from grinding on the rotor I did that.
It's been a few months already with already 3k miles on them at least. No issues.
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