How to change rear brakes on 2004 Jeep Liberty.?

The brakes seem to be grinding, so we bought pads and their is a problem with installation.How to change rear brakes on 2004 Jeep Liberty.?the problem you,ll be having will be getting the calipers to go back in on it and that will make the pads not want to go on right,you cant press the calipers in they turn in so don't try and press them other wise you,ll damage them and have to replace them both,turn them in and the pads will fit right,good luck.