I've got an 07 gxp and the left rear caliper has been dragging to the point that is completely trashed new pads and a rotor in about 2 months. I put on a new caliper with bracket rotor and pads and it immediately starting sticking again. I think thought maybe a bad hose then so I changed the hose, same problem. Exchanged the caliper for a new one and it's still sticking. Then I took a known good caliper off of another gxp I have and IT'S sticking. Swapped the lines at the ABS block and it continued to stick on the left rear. I removed the bracket and just held the caliper in place by hand and had someone hit the brakes and it's still sticking so it must not be the bracket or sliders causing binding. Also disconnected the brake hose and completely removed the bleed screw and they still drag hard. The pistons all compress just as easy as I would expect but I am pulling my hair out trying to troubleshoot this so if anyone has any suggestions I would really appreciate it.
TIA
