Are you restoring a classic squarebody GMC where the tailgate is completely rusted out or dented beyond recognition? It can take a lot of work, time, and money to repair a tailgate back to new. Holley has a perfect solution with our Holley Classic Trucks Premium Tailgates. The 1973-1974 GMC tailgates are manufactured from new tools to provide a great fit and look. Manufactured from heavy gauge steel and EDP coated for strength and corrosion protection, this tailgate will provide quality and detail that your project deserves.