Never mind the search. I was wrong, so here's the pic I was thinking of:
The cresent shape is just above in the pic. And the last 4 inches or so has to be bent as you see on the biggest piece. There is one in front of that, but maybe not behind it. Anyway, it's fairly plain to see once you get a couple in place.
Notice the 911 M caliper and vented disc. (no ebrake)
That's ischmit on the BBS in the pic.