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Go Rhino RB20 Slim Line running board kit for 2015–2019 GMC Sierra 2500/3500HD Double Cab comes with a protective bedliner coating and delivers a slim, full-length step that shields panels and boosts ground clearance. Built from 16-gauge zinc-coated galvanized steel with a 5½" bullet-stamped tread, the kit includes mounting brackets and is covered by a Limited Lifetime materials warranty and a five-year finish warranty.
Go Rhino 15-19 GMC Sierra 2500/3500HD DC 4DR RB20 Slim Running Boards Kit (w/Brackets) - Bedliner Ct
