Go to my gallery and you will see! I am going through this 'nightmare' right now. I bought a hood that I THINK may have come off a '72 Valiant, looks like tha Duster hood, but it's about 1-1/2" shorter!
What you are trying to do is totaly different then what we are talking about here. As you have found Duster and Dart hoods are not the same. The only way to make a Duster hood work on a Dart is to change over th whole front end. IE fenders, hood, bumper, grill....
Plymout put Duster front ends on Darts starting in 71 and called them Scamps.
