Find the Gear Kits you need to regear the axles in your 2017-2019 Chevy/GMC 6.6L L5P Duramax. The races, seals, bearings, and ring & pinion set you need for installation are included with these kits. To suit your particular requirement, these kits are offered in a vast array of gear ratios to suit your vehicle needs, gear ratio, and tire sizes. Find top-tier manufacturers such as Nitro Gear & Axle and Yukon Gear & Axle.