I searched and couldn’t find much info on changing out pads on ranchers with the rear disc brake.

I am swapping them out and have a couple questions:

1. The original pad that came off the front side had a metal backing plate with two layers of what looks like heat insulation in between it and the brake pad. The brake pad also had a location pin for that backing plate.

The new brake pads do not have the location pin and doesn’t fit the backing plate very well. Does this need to be reinstalled? Seems like it would probably work loose and fall out. Any anti-seize on the back of the pad?

2. Does the main bolt that the caliper rides on need anti seize on the shaft portion? It came out with a bunch of powdery substance on it. I put anti seize on the "ears" of the brake pads.

Thanks!