The only other difference is the 71-74 hoods had pull rods for the second latch, the 70's had a tab. There is a raised spot on the underside of the hood for the pull rod mount which uses 2 screws and a bracket. If your installing on a 70 it's no problem. If you have a 70 hood on a 71-74 take care when mounting the rod support bracket so it doesn't dent the hood from underside.
