[Three Peaks]

It looks like you have some alignment issues related to using a clevis. If it were me, I would make a block that mounts on the inside of the arm (between the arm and the pedal box) with a pin that goes through the hole in the arm. Drill a hole in the block that aligns with the alignment of the cylinder rod and use double nuts to lock it down once adjusted. With the pin in the arm, the block will spin as needed with the rod alignment. Use a washer and a cotter pin to secure the outside of the pin through the arm.

Hope this makes sense. Let me know if you need a better explanation and I'll send you a pic or my phone number.

Bob