2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Rear Gears

If you've upgraded to larger wheels and tires on your 2004.5-2005 GM 2500HD/3500HD and noticed a drop in power while driving or towing, aftermarket axle gears are the ideal solution. Restore your truck’s power and efficiency with our selection of OEM-style, precision-crafted rear gears. Whether you need a single gear or a complete set, these rear gears will help bring your truck's performance back to like-new condition. Find the perfect fit at Alligator Performance. Equip your gears with a quality Install Kits to ensure they run flawlessly.  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.