[Mr70]

I checked my Each year Chevrolet parts catalogs from 1965-1980,and the nearest I can find is #3197636 front for 1964-67 Chevelle SS,and 1967 Impala,and also #3197643 front for 1963-66 Series 10-20 truck.
So it might be a B-O-P-Cadillac application.