This 1963-1964 Chevy Instrument Cluster Dash Housing with Tachometer and A/C cut out is an original GM dash that has been properly cut to factory specs to fit an original tachometer and center AC vent. We then media blast and prime the dash so it is ready for installation. The dash may have some minor pitting. The difference between the 1963 and 1964 dashes is the opening for the center vent. The 1963 is wider (6") while the 1964 is narrower (5").