Your GM 2500HD/3500HD's stock rear bumper doesn't do a great job in protecting your trucks rear end! Our heavy-duty rear bumpers for your truck add protection, aggressive style and recovery points. Our heavy-duty rear bumpers are great at protecting your truck against rear-end accidents, road obstacles, and any hazards you may encounter off-road. Enhance your rear end with our heavy-duty steel and lightweight aluminum rear bumper options for your GM truck! Complete your trucks protection with a heavy-duty Front Bumper! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments. Â