Went to set the parking brake this morning and the pedal went quite easily all the way to the floor. I was parked on a hill and the truck started to roll, so I knew it was broken. I traced the broken cable at the rear wheel inside the spring going into the rear disc. Not sure why it broke; could be repeated use (6sp), but it did not break cleanly. I guess it finally wore through. Keep an eye on those cables! Now, is it a PITA to replace?