one thing I saw is there are a couple 'black box' emissions things not on it that were on 74. I wasn't sure if they should be on mine cause the wiring and 'nutserts' to attach are there. I couldn't tell if this one had the wire connections in the harness, but this one definitely had the unused mounting spots. and this was an early 75...It had the orange lens in the grill. 75 changed to a clear lens with an orange bulb. I can also see a couple other unused connectors on the harness that I questioned on mine.