Gooseneck Hitch Ball Kit for 2016-2019 Chevy Silverado GMC Sierra 2500HD 3500HD | eBay
Amazon.com: 60692 Gooseneck Hitch Kit 30K 2-5/16-Inch Compatible with 2013-2021 Chevrolet Silverado 2500 HD 3500 HD/Ford F-250/F-350 Super Duty/ GMC Sierra 2500 HD 3500 HD/Nissan Titan XD : Automotive
CURT Double Lock EZr Gooseneck Hitch Kit with Brackets, Select Silverado, Sierra 60687 - The Home Depot