These strikers or catches are what the tab on the compartment door latch locks into. This is a car set for the two door compartment.
Corvette Rear 2-Door Storage Compartment Striker 8 Piece Kit, Car Set With Screws. If you do not have these strikers, the doors won't stay latched down.
Kit Contains:
Note: Late 1979 for the 2 Door Rear Comparment started at approximate VIN numer 53,500. With only 53,807 cars produced, late 1979 use is very limited.