After Replacing The Brake Pads & Calipers, Why Do My Brakes Still Squeak?

If you put semi metallic pads on, they will squeak because of the metal in the pad. I like to use ceramic pads, stop better, no noise, no dust. Also try adjusting the rear shoes so there is just a little bit of friction when you spin the wheel. This will keep the front brakes from doing all the work. Once you have adjusted the rear brakes, once in a while back up about 10 mph and hit the brake hard, this will work the self adjusters and keep the rear wheels adjusted just right.
Chris

The best way to stop squeal is to champher the brake pads, meaning file off all the edges around the pad at a 45 degree angle and lubricate between the pad and the caliper with never seize, it also helps to have a freshly machined rotor so the new pads don't get glazed.

I properly will use sport pads,n it wont make so much noise,less friction,to make more back upby hitting the brake harder we can adjust ourself to work it out so we can know what the problem