Upgrading the factory rear shocks on your 2020-2025 GM 2500HD/3500HD 6.6L Duramax is one of the most cost-effective ways to enhance your truck’s handling and performance, especially if you run a stock or slightly lifted setup. These 0-2" rear shocks are designed to provide more stability and control during towing, hauling, and off-road adventures, all while maintaining the ride quality and comfort you expect during your everyday drives. Pair them with a set of 0-2" Front Shocks to create a well-rounded suspension system that helps you take your GM Sierra or Silverado 2500HD/3500HD to the next level.GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 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.