73-74 Chevy Truck Inner & Outer Grille Shell Mounting Brackets. These grille mounting brackets are a direct replacement of the original 73-74 Chevy truck brackets. This kit can be used to replace worn, missing or rusted brackets or to adapt the 73-74 "Deep" grille in other 1973-1980 Chevrolet pickups, Blazers and Suburbans. For the 1975-1976 you need to remove the center, and intermediate brackets and also replace the hood latch release with one from a 1973-1974 or 1977-1980. For the 1977-1980 you will just need to remove the intermediate brackets and install these.