Dave Sr. from SWISCO responded:
July 24, 2018
We have two operators similar to yours. See our 39-016, which has a threaded hole at the end of the link arm, and our 39-057, which has a 3/8" hole at the end of the link arm. Look at both to see which one matches up best. Looking at your photo, I'm leaning towards the 39-057, but look over it to make sure. |