2 or 3 different ways to get there. the easiest way is to go to a junk yard and buy another set of backing plates, that'll have your stuff. You could go to the raybestos web site and try to purchase what they offer, Dorman web site will have some of the bits and pieces too. But i would feel most comfortable doing the junkyard thing and getting the backing plates with pigtails intact, then disassemble and massage all the pieces so they are like new condition. I have never seen an emergancy brake system worn out - the lever and sector under the dash will get a lot of slop but at the wheel - they just need thorought going thru. To get the pigtail out of that socket in the backing plate use a small hose clamp, that will draw all those 'teeth' that spread out and make it a one-way fitting, the hose lamp will draw them down so you can start it and once past the mouth the clamp can be loosened and the pigtail will pop out.