I just took a quick measurement, with a tape, of both sides of the wheel cylinder. One side is 1 1/4 and the other is 1 3/4. The old one, made in U.S., has the size written on it. I'll look for it tomorrow.
By the way, I'm also a member of the Napco forum, I guess I haven't signed in there in a while and now it seems to be only on facebook? Is that correct? I don't facebook.
Last edited by hotshoe99; 07/26/2022 12:51 AM.
