My 66 Biscayne, the drivers side wiper will ride over the stainless trim at the bottom of the windshield when activated. The right side is fine at the bottom and outside of the sweep. The Assm manual shows the criteria for placement. I have done this. The arms are splined to fit on the linkage with a "locating" index.
How can I adjust the arm (other than bending it) to not hit the trim?
