King Shocks 25001-302A -2.5" Front Shocks w/Res for 11-26 Silverado/Sierra 2500

Vehicle Fitment

• 2011-2026 Chevrolet Silverado 2500HD
• 2011-2026 Chevrolet Silverado 3500HD
• 2011-2026 GMC Sierra 2500HD
• 2011-2026 GMC Sierra 3500HD

Fitment Notes

• Front axle application
• Sold as a pair
• Designed for stock height applications with 0-2.5" of lift
• Not for lifts beyond 2.5" -- for 1-2" lift with aftermarket torsion key, see companion kit 25001-302A-EXT; for 2-3" lift with aftermarket torsion key and upper control arm, see 25001-302A-EXT2
• Requires vehicle-specific mounts included with kit

Features

• 2.5" diameter piggyback remote reservoir design
• Adjustable compression damping via external adjuster knob
• Heat-treated 6061 aluminum alloy pistons
• Rulon composite wear bands
• Large hard-chromed, micro-polished shafts
• High-strength rod ends with steel PTFE spherical bearings
• Precision-bored steel shock cylinders
• Machined aircraft-quality billet aluminum components
• Vehicle-specific mounts included
• Fully rebuildable and field-serviceable design
• 100% bolt-on installation, no cutting or welding
• Hand built in the USA

Specifications

• Position: Front
• Diameter: 2.5"
• Reservoir type: Piggyback, remote
• Adjustability: External compression adjuster
• Extended length: 18.70"
• Collapsed length: 14.12"
• Lift range: 0-2.5"
• Quantity: Pair (driver and passenger)

Included Components

• 2x Front OEM Performance shock with piggyback reservoir
• 1x Adjuster knob per shock
• 1x Set of vehicle-specific mounting hardware
• 1x Installation instructions

Product Description

The King Shocks 25001-302A is a pair of front OEM Performance shocks with 2.5" diameter piggyback remote reservoirs, engineered as a direct bolt-on upgrade for the Chevrolet Silverado and GMC Sierra 2500HD/3500HD. Every kit is subjected to extensive dynamometer lab testing plus punishing real-world testing to develop the optimal damping curve specific to this platform, delivering the same King ride quality found on the company's high-end race shocks.

Heat-treated 6061 aluminum alloy pistons, Rulon composite wear bands, and large hard-chromed, micro-polished shafts are paired with high-strength rod ends and steel PTFE spherical bearings for durability that outlasts factory equipment. The 2.5" precision-bored steel shock cylinder and external remote reservoir dramatically increase fluid capacity for cooler-running, more consistent damping performance under sustained heavy-duty use -- whether towing, hauling, or running rough terrain.

Designed for stock height applications up to 2.5" of lift, this kit includes vehicle-specific mounts and all hardware needed for a 100% bolt-on installation with no cutting or welding. Every King shock is fully rebuildable, letting owners service and re-tune the damper for years rather than replacing it outright. Built for Silverado/Sierra HD owners who want genuine race-proven ride quality and control on a stock or lightly-lifted daily driver or work truck.