King 25001-303A OEM Performance 2.5 Rear Shocks | 2011-2025 GM Chevrolet 2500HD/3500HD

Features:

• Custom tuned for GM 2500HD and 3500HD trucks
• 2.5" shock bodies for greater fluid capacity
• Remote reservoirs enhance cooling and consistency
• Factory tuned for smooth, balanced ride quality
• Increased wheel travel for improved suspension performance
• 100% bolt-on installation with no frame cutting
• Fully rebuildable, serviceable, and tunable design
• Built with race-grade materials and tight tolerances
• Optional 20-click compression adjuster for fine tuning
• Tested in both lab and real-world conditions
• Designed to perform under heavy load and rough terrain
• Provides sustained damping performance in extreme use

Take Your Rear Suspension To A Whole New Level

When you want your GM 2500HD or 3500HD to handle rough roads and heavy loads with confidence, the King 25001-303A OEM Performance 2.5 Rear Shocks are built to make it happen. These shocks deliver a smooth, controlled ride while keeping your truck stable whether you are hauling, towing, or hitting the trails. The large 2.5 inch shock bodies hold more fluid to keep performance consistent, and the external reservoirs help manage heat even under the most demanding conditions. With their custom tuning designed specifically for your Chevy HD, you get balanced damping that keeps the rear of the truck planted without sacrificing comfort. Installation is completely bolt-on, so you can upgrade your suspension without major modifications or downtime. These shocks are also fully rebuildable and serviceable, giving you long-term value and performance you can maintain for years. Whether your truck is a workhorse or a weekend toy, this setup delivers the confidence and control you need on any road or trail.

Precision Tuned Rear Shocks For Heavy Duty Performance

The King 25001-303A OEM Performance 2.5 Rear Shocks are engineered with a focus on durability and control for 2011-2025 GM 2500HD and 3500HD trucks. Each shock undergoes extensive testing in both lab and real-world environments to create the ideal damping curve for the unique demands of a heavy-duty rear suspension. The 2.5 inch shock bodies increase fluid volume, while the remote reservoirs provide improved heat dissipation to maintain performance under load. Factory tuning ensures these shocks deliver consistent ride quality on the road while providing the responsiveness needed for off-road use. An optional 20-click compression adjuster allows you to fine tune your setup for different driving conditions, whether you are carrying heavy cargo or running empty. Built with the same high-grade materials and precise tolerances as King's race-proven series, they are designed to handle punishing use while maintaining reliability. With a fully rebuildable design, these shocks offer long-term performance and adaptability for any driving situation your Chevy HD encounters.

Fits: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 GM Chevrolet 2500HD/3500HD

Notes:

• Designed for 2011-2025 GM 2500HD and 3500HD models
• Sold as a pair of rear shocks with reservoirs
• Custom tuned specifically for Chevy HD rear suspension
• 100% bolt-on installation with no cutting required
• Fully rebuildable and serviceable for extended product life
• Optional 20-click compression adjuster available for tuning
• Tested extensively in lab and real-world conditions
• Built using the same materials as King's race series
• Designed to handle heavy loads and towing demands
• Compatible with stock height and certain lifted setups

Install Instructions