1974 dart package tray for valiant

I have a 74 4 door valiant that i want to get a new package tray for, but all the ones on the internet say its for a dart. will it fit on my car? and does anyone know how to install it. here is the link for the part:
https://www.classicindustries.com/product/1974/dodge/dart/parts/ma111405.html