I should have taken more pictures when I disassembled the dash on my '61. (LHD)
There are two angle brackets for holding the lower edge of the plastic ventilator grilles on the sides of the dash. One has captive nuts with cages all on the inside of the angle. One has captive nuts two on the inside of the angle and one on the outside. Which angle bracket goes on the drivers side and which goes on the passenger side?