Here is the measurements for the front caliper bracket. I don't know the measurements for the rears as I didn't use a Fiero back half of the chassis. Because the front adapter bracket mounts on the outboard lugs of the front spindle/knuckle, you will need to machine the lugs flat and at 90 degrees to the vertical spindle. If you choose to use wheel adapters, you will have to install longer studs into the hub.
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