That's the problem, the hanger 9 metal arms are not uniform across the board. Some fit perfect, some don't fit perfect. You are not losing your mind!

Some were loose and produced slop. I quite using them when I had to buy 4 to get 2 to fit right. Can't speak for any other metal ones although the SWB ones seem to be good, but I don't like them for the same reason Harley doesn't, you can't use a clevis.

By the way Harley, next time you won't strip the spline, you will break the gears in the Servo!

I've said before, I felt vindicated when they started shipping the HD plastic with the 8711 which is essentially JR saying this arm will hold up to 400 oz torque. Some people thought I was nuts when I was putting them on an 8611. Thought I would break it. I've done my own load tests, it's strong!