Have you checked or replaced the rear pads? I had a 2011 Explorer and it seemed like the bias was to use the rear pads more than the front. My fronts didn't wear very quickly and were still original as of 80k.
Well, I mentioned to pick up above. They where front disk rear drum trucks so between cheap parts store pads I got decent pad wear but probably 40 to 50k if remember right. I owned a 1999 Ford Expedition that had 4 wheel disk and got hood pad wear.







