So yesterday I was fixing to change my rear break cable because it was streched out ... as soon as i checked that screw on the rear brake cable where it connects to the caliper i saw that the screw was broken inside the hole with half of it in and the other half out. so was going to put it up so my buddy could come and help me out but then the damed rear breaks went on and they wouldnt let off nomatter what....... WHAT DO I DO