Has anybody ever greased the top tilt pins on a skid steer. Was working on a 2022 Case TV370B and it had a screeching noise when curling the bucket. I thought it was the lower pin but I greased it and screeching was still there. Ended up being the upper pin. They have no grease fitting and come dry from the factory. Machine only had 40hrs on it. I took the pin out and greased it and noise went away. Never had a issue with a upper pin.