2017-2019 GM 2500HD/3500HD 6.6L L5 Duramax Driveline

If you've added larger tires and want better traction for your 2017-2019 GM 6.6L Duramax L5P, check out some of the driveline upgrades we offer here at Alligator Performance! Upgrading to more aggressive ring-and-pinion gears helps your GM 2500HD/3500HD regain lost acceleration and maintain a proper power band, especially with larger tires. These upgrades ensure your truck performs at its best, both on and off the road. For those after more traction, aftermarket differentials offer a significant boost, allowing your truck to tackle tough and uneven terrain with ease. And add a new differential cover to simplify maintenance while giving your truck an enhanced, rugged appearance. Pair these driveline upgrades with a new Brake Kit or some Control Arms to complete your custom build and further improve handling and control.  GM Duramax Fitments: 2017, 2018, 2019 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.