I believe it is called the lower radiator support if it is the full length of the radiator.
Now if it is just under each side of the radiator, a small rubber part that I believe is the radiator support bumper. There are or used to be four of those in the older vehicles one on each corner.
Now I could be wrong about the second ones name but it should be close enough to get the part at the dealer Chevy parts store.
Now if it is just under each side of the radiator, a small rubber part that I believe is the radiator support bumper. There are or used to be four of those in the older vehicles one on each corner.
Now I could be wrong about the second ones name but it should be close enough to get the part at the dealer Chevy parts store.