Not sure what they are called, but the two things that keep the window from dropping are broken and the window will drop. The attached photo shows the length and what the item looks like. Are these available?
Casey from SWISCO responded:
July 8, 2021
Hello,
We can't be sure with the hardware still installed but you can start by comparing the dimensions of our 15-045 pivot shoe and 3/8" diameter S900 spiral balance to your parts. Thank you!