Upgrade your classic Buick Fullsize or Riviera with our high-quality Steering Column Turn Signal Switch Adapter Harness. Specifically designed for 1969-1976 models, this adapter simplifies the integration of a 1977 and later GM steering column into your stock dash harness. Enjoy hassle-free installations and enhanced functionality, including support for cornering lights, horn, directionals, and more. Say goodbye to compatibility issues and restore the vintage feel of your car while maintaining modern convenience.