2017-2019 GM Duramax 6.6L L5P Driveline Upgrades

Whether you've added larger tires and want to win back off-the-line performance, or just need some improved traction for your custom build, these 2020-2022 GM 6.6L Duramax L5P driveline upgrades are here to help. More aggressive upgrades like ring-and-pinion gears allow your GM 2500/3500 to compensate for larger tires while helping it get back acceleration and a proper power band. Aftermarket differentials offer up an excellent improvement in traction so you can handle just about any terrain on the planet. New differential covers make maintenance much easier while adding an impressive appeal to your truck. 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.