[Formula413]

I was putting new rear pads on my car yesterday but I ran into an issue. My manual says that the pad with the squealer tab (wear indicator) is the outer pad, but that pad wouldn't fit on the outside of the caliper. The tab actually won't clear the caliper itself. There is also a little nub on the back of that pad that keeps it from seating flush against the caliper if I try to put it in the outside position. The pad with the tab was the thinner of the two pads which would make sense if it is the outer pad. Are these brakes backwards for some reason? If I switch the pads everything goes together fine. And the pads I took out had the pads with the tabs on the inside as well. What gives?