The 2004.5-2005 GM 6.6L Duramax LML is undoubtedly a highly capable truck, but it’s our high-quality off-road bumpers and skid plates that truly provide bold styling and exceptional protection. Whether you need a robust front bumper for serious off-road defense or a better shield for your GM 2500/3500's exposed underside, our range of aftermarket bumpers is sure to meet your needs. While you're at it, be sure to check out our entire selection of GM 6.6L Duramax Lift Kits to complete your custom build!GM Duramax Fitments: 2004, 2005 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.