71 and 72 hood question

Could be.

Mtrhead said

I also believe the crumple zones are different between a 72 hood and a 70/71 Hood

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I have both types, so I will have a close look.
Edit*
I looked at all my 70,71, and 72 hoods and see no crumple zones.
The 73-76 hoods do have differences in that regard, as 73 hoods have no crumple zones, and 74-76 do