Doing the brakes

[Reds Eddie]

I've half-assed searched, I've got to do the brakes on my Explorer. The rear is squealing. My question is do the rear calipers screw in or push? How about the front ones as well? Anything I should know thats different. I've always done my own work some I cool with it but sometimes these newer vehicles have hidden surprises!

 

[Reds Eddie]

Update: So I went out and checked my pads. Still got plenty of meat, can still see better than a 1/8" of the "U" in the middle of the pad. My question now is the brakes squeal when applied, is it normal with plenty of pad left? I'd guess I still have 9-12 months left on the rear. It is the rear squealing by the way.