Pivot lock shoe for tilt windows

I am looking for pivot lock shoes for 6 of my double hung titled vinyl windows. First I will like to know how do I get the pivot lock shoes out so I can properly measure them. I have reviewed your video where I see Mike replace the tilt window spiral balance, but did not see Mike take out the shoe. Can you show mea video on how to take the shoe out. I believe your part number 15-076 is the one I need, but I will like to be sure prior to ordering. Can someone help me out. I did send a picture yesterday of the spiral, but after looking more closely, the spirals are fine, but the pivot lock shoes are broken. I appreciate your response.
I have attached two picture of the shoes.
Thank You,

Joe