King 25001-303 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 improve cooling and consistency
• Factory tuned for balanced ride and control
• Increased wheel travel for better suspension movement
• 100% bolt-on installation, no cutting required
• 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 environments
• Designed to perform under heavy loads and towing
• Compatible with stock and some lifted suspensions

Upgrade Your Rear Suspension For A Ride You Can Trust

If you want your GM 2500HD or 3500HD to feel more stable and controlled, the King 25001-303 OEM Performance 2.5 Rear Shocks are built to deliver exactly that. These shocks are designed to smooth out every mile, whether you are towing a heavy trailer, hauling gear to the job site, or just cruising down the highway. The large 2.5 inch shock bodies keep performance consistent by holding more fluid, while the external reservoirs help manage heat during demanding use. With custom tuning developed specifically for your Chevy HD, you get a ride that stays comfortable without sacrificing the control you need under load. The bolt-on installation makes upgrading straightforward, so you can get the benefits without complicated modifications. Fully rebuildable and serviceable, these shocks are a long-term investment that keeps your truck performing at its best for years to come. For anyone who needs durability and comfort working together, this setup is the answer.

Rear Shocks Designed With Precision And Built For Strength

The King 25001-303 OEM Performance 2.5 Rear Shocks are engineered with attention to detail to match the demands of 2011-2025 GM 2500HD and 3500HD trucks. Each shock is tested extensively in the lab and in real-world conditions to create the ideal damping curve for the rear suspension of a heavy-duty truck. The 2.5 inch shock bodies increase fluid volume for better cooling, and the remote reservoirs keep performance consistent during long hauls or rough terrain. Factory tuning balances ride quality and control, making them capable on the road and dependable off it. An optional 20-click compression adjuster allows you to fine tune your setup based on load and driving style. Built with the same high-quality materials and tight tolerances as King’s race-proven shocks, they offer the strength needed for towing, hauling, and off-road performance. Fully rebuildable and serviceable, they are designed to deliver lasting reliability and performance you can maintain over the life of your truck.

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 for Chevy HD rear suspension performance
• 100% bolt-on installation requires no frame modifications
• Fully rebuildable and serviceable for extended product life
• Optional 20-click compression adjuster available for tuning
• Engineered for heavy-duty towing and hauling applications
• Compatible with stock height and certain lift setups
• Tested in both lab and real-world driving conditions
• Built with the same materials as King's race series shocks

Install Instructions