Bestop 75307-15 Rear-Mount Trekstep for 2014-2018 Chevy Silverado/GMC Sierra 1500 & 2015-2018 2500/3500; fits rear driver side or rear passenger side (without dual exhaust) Convenient stair-step access to your truck bed in any weather Bolts to frame on either corner Patented alloy linkage extends down 6 inches and slightly outward with push of your foot more tools Works with tailgate up or down leaving hitch free for hitch or other accessories 300-pound capacity