As with so many, my parking brakes do not work. I pulled the rotor off and found no friction material on the parking brake shoe on one side so far. The new AC Delco parking brake kit comes with a bunch of hardware, but no installation guide. I cannot figure out where the extra parts go. I have read that GM had issued a TSB and updated the hardware to prevent the shoe from moving and dragging by adding extra clips, but as I said, I cannot find guidance on where those clips go. Thank you for any help.