Double Support Detent Clip

Can you please help me identify and replace all needed parts for my window with broken coil springs on both sides. The vinyl windows are quite old and I haven't been unable to identify any brand/model markings on the window frame itself or on any of the hardware. Thank you for your time and any as ... (cont.)

I am looking for a part for a window, see pics attached. 1 pivot shoe is missing on one side. Would you carry a similar part?

I need to replace two coil spring balances on a MI Window. As the pictures show, they are double coil and the only marking in the number 7 stamped onto the metal of the coil spring.

Windows came with the house when I moved in. Approximately 30-35 years old.

We just replaced the window glass. The new window pannel weight is 25lb. could you help to identify the whole assembly unit of tbe coil balance I should choose? I lime to replace both assebly units (left and right).