1947-48 door relay bars sit horizontally in the door recess. After that Chevy changed them to run diagonally across the door to reverse the handle rotation direction to make it easier for occupants to operate. Of course all reproduction door relays are the later (angled) configuration.
I used '64-'66 relays on my AD to avoid the door panel bulge. The bar had to be cut and re-welded, but otherwise it was a bolt-in:
Is that setup push-forward-to-open?
