1989 Fox Brakes Scraping Wheels!

I hope I am posting in the right forum, anyways, my front outer brake pad blacking plate is scraping the inside of my new wheels! I am wondering is anyone had this issue? In particular, I am wondering

1. is it safe to grind the backing plate (the hole where the calliper bolt slides through)? I know on the 79-82 callipers, the out pad had no such hole at all, and it was fine..

2. are there any other calliper/pad options out there?

I would REALLY like to keep this wheel, and it just seems there should be something that can be done about this annoying part of the backing plate!

I can't get a pic of my car at the moment. The area I'd like to grind are the holes/loops in the backing plates shown here:

Mustang Front Brake Pads - Stock Replacement (87-93) 5.0

The loops don't bear any load. The calliper bolts go through these loops, and this only serves to keep the pads from sliding around too much. So as long as I leave enough of the loop for this purpose, it should be fine?