Who has Dr. Diff 8 3/4 rear discs? Pt. 2

I contacted Dr. Diff just now. Are you suggesting that I look at the pads with the caliper off? I am not sure I could see anything with it stationary.

No do not apply line pressure to a brake caliper when it is dismounted, that will fully extend the piston and probably pop it out.
yes you can see the pad to the rotor interface, go look.