ok then thanks cause the lines do look the same but I didn't notice the wheel open being higherIncorrect ..... The body lines are the same.
I documented this with pictures several years ago.
The wheel openings are different. The 73/74 is cut higher.
Also, the front structure that the headlight buckets mount to is different.
If you put a 73 fender on a 71, there will be a gap visible around the front core support area .
Also, one fender bolt hole on the top will not line up.