Each window requires these four spring actuators. The problem is that over time the nylon becomes brittle and cracks. The only name on the window that I can remember is ROWE, maybe. Over fifty years old. Thanks for taking a look' George
Casey from SWISCO responded:
March 8, 2021
Hi George,
Take a look at our 20-006 clutch set and see how the product specifications compare to yours. Thanks for posting!