I see. It just seams like a lot of weight on the pin. Did you add a bolt to the other side yet? Every one my dealer sells have a bolt through the other side in case the pin fails. And fail it will, I left my bolt out, quickly broke the pin and both tabs, pushed the guard into the grill. It was the first dent or scratch on the then new machine.
The fold down roll bar on my old 2355 Deere squeaked like crazy. I put a small strip of mining belt between the top and bottom halves and that stopped it. The canopy on my 9540 just started squeaking and it is driving me crazy. If I ever build one I think I'll let them touch just close enough to fit rubber between.