Chrome locking gas cap for your classic Chevy and GMC truck restoration project. Replace your old fuel cap with this new, more attractive locking gas cap. Our cap includes a pair of matching keys. Fits: – 1947-1954 Chevy GMC 3100, 3200 and 3600 series Trucks – 1955-1959 Chevy GMC 3100, 3200 and 3600 series Trucks – 1960-1966 Chevy GMC C10, C20 and C30 series Trucks – 1967-1971 Chevy GMC C10, C20 and C30 series Trucks