If you're looking to enhance the protection of your GM 2500HD/3500HD and achieve a more aggressive stance, fender flares are the perfect solution. Our selection of fender flares offers additional tire coverage, safeguarding your truck's paint from debris. Installing a set of fender flares on your GM truck is also an excellent way to create a wide, aggressive look. Designed for durability, these fender flares can be easily installed without the need for drilling or cutting. Combining style and functionality, fender flares are a valuable upgrade that will give your GM 2500HD/3500HD a unique and striking appearance. Pair your fender flares with our selection of Mud Flaps for additional protection from mud and debris. 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.