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    • GMC® Sierra Heavy Duty 3500 | The Official GMC® Website

      https://www.gmc.com › Sierra-HD › 3500HD
      SponsoredThe GMC® Sierra Heavy Duty Offers Available Max Towing up to 36,000 LBS. Visit GMC.com. Offers More Trailering Assistance Technologies Than Any Competitor in its Class
      Models: Sierra HD 2500, Sierra HD 3500, Sierra HD Denali, Sierra HD Denali Ultimate