[NZGTRA17]

Originally Posted by Cobra4B

The rear mount flanges were angled outward on each side. I confirmed with John @ Panoz that they should be square. I had a local shop square them and add a reinforcement gusset. Test fitting the calipers this weekend I found that each side was now perfectly square, but the caliper was too far inboard; it would not center on the rotor. Flipping the mount brackets and/or adding shims would only serve to move the caliper further inboard. I dropped the brackets off today at the local machine shop to have 1/16" taken off the mount surface so I can move the calipers outward and get them centered on the rotor.

So it appears:

1. Someone angled the flanges outward to center the caliper on the rotor at the expense of being square.

2. The misalignment of the caliper on the rotor somehow caused the caliper flanges to bend outward over time i.e they "self-centered" over the years. Again, at the expense of being square.

Just something to check next time your looking your car over. For the record I tested multiple hub/rotor assemblies and made sure the assemblies were fully seated on the axle. I could have shimmed the rotor inward off of the hub, but I didn't want to worry about runout issues if the washers I used weren't of uniform thickness. Plus, doing it that way would mean I have to shim the spare assemblies too. Not in any rush so elected to take the caliper brackets to the machine shop and do it the right way.

Thanks Brian, was going to check this on my car so good to know what has occurred during assembly.

Kel.