I am going to replace the rear brake pads and rotors on my 87 560 sel next week and am just starting to take things apart and check what I need before I start ordering parts. One question I have now while removing the passenger side brake caliper is if I should disconnect the brake line before I try to take off the caliper. I have finally gotten the two fastening bolts loose and I can't quite get the caliper off the disc. Any tricks to this procedure?