63 Valiant vs 64-66 Fuel tanks

I am looking at getting a new tank, and noticed on Classic Industries that they have a different part# for the 1963 compared to the 1964-1966 tanks. Can a 64+ tank be used in a 63?

1964-1966 Plymouth Parts | FT6001A | 1964-66 Mopar A-Body - 18 Gallon Fuel Tank - Zinc Coated Steel | Classic Industries

https://www.classicindustries.com/product/all-years/plymouth/all-models/parts/ft6000a.html