Difference between 73 and 74 Dusters ?

danmc77 said
The front grille lights are amber on the 74, clear on the 73. After 73, they also used the heavy impact bumper system - but that's not visible by just looking at the exterior. that's the only difference I know of.

My 74 had identical grille lights to my roomate's '73.
I don't think they had amber lenses until 1976.