Window coil

Thanks for writing in your question. Starting with the pivot shoe, our 15-180 may be worth considering. You may also want to look into the 15-181 double support detent clip. These pieces can be used with the Series 190 coil spring. Take a look at our spring to see if it is compatible with yours. If so, there should be some sort of stamped number on the spring. Get back to us with that number.