Window pivot shoe
Thanks for reaching out! The part you have pictured here is the 15-087 Coil Housing Pivot. This housing uses the Series 180 Coil Balance. Since yours is marked with an 8, you'll need the S180-08. You may also need a mounting bracket like the 16-024 but you'll need to double check the window to determine if this is the one you have.
These are not specified for left and right handed applications. Carefully compare the dimensions below to confirm this is the right fit for the repair.
I'm afraid we do not have a video but it is fairly easy to assembly. You'll just need to place the coil and the support barrel inside the shoe and then snap the housing together. I hope this helps!
Please feel free to reach out with questions once you receive the hardware!