This retrofit column is designed to fit your 1963-64 Impala and does NOT require modification to your original vehicle to install. Simply remove your old column, saving your original under dash mount and floor mount. A new aluminum dash bezel is included with the this column.Steering Wheel Adaptor Required (for Aftermarket Wheel).1969 or Newer GM Passenger Car.3, 5, 6, and 9 Bolt patterns available