The actual hood latch is VERY different between the 2 years. IF you look top down, you will see the mounting plate has 2 holes (1966) versus 3 holes. (1965) The actual latch has 2 or 3 holes, so they do not interchange with the top plate. The top plate also is "flat" for the 1966 and "ramped" for the 1965, and there is an extra stamped steel bracket that mounts to the top of the 1965 top plate. The long brace that comes down from the hood latch is the same.