Update...

I just put on a set of front and rear Centric ceramic pads and am very impressed!! I did a bunch of on-line research and decided to give these a try as I was getting an annoying squeal from the right-rear and didn't like the feel of the stock pads (Toyota branded Sumitomo semi-metallic) that were on the 4Runner. The feel wasn't consistent and was making me a little nervous... I felt that I should be able stop better.

These "Posi-Quiet" ceramic pads are awesome! Dramatic improvement in feel, stopping power, and absolutely no noise. The pedal, for some reason, feels remarkably better... it could be the thickness of the new pads, I guess. The stock pads were about 1/2 gone as compared to the thickness of the new Centrics.

I love my new brakes and would recommend these to anyone looking for new pads!

~Doozi