King Shocks 25001-303A 2.5 Rear Shocks for 11-25 Chevy/GMC 2500/3500 HD 4WD

Regular price: $1,375.95
Regular price: ~~$1,515.00~~
Sale price: $1,375.95

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Product Specification:

SKU:KIN25001-303A

MPN: 25001-303A

Weight: 29.8 lb

Type: Shocks and Struts

Vehicle Fitment

2011-2025 Chevrolet Silverado 2500HD 4WD (all trims)
2011-2025 GMC Sierra 2500HD 4WD (all trims)
2011-2025 Chevrolet Silverado 3500HD 4WD (all trims)
2011-2025 GMC Sierra 3500HD 4WD (all trims)

Features

King Shocks OEM Performance 2.5" rear shock absorbers with piggyback reservoirs
Optional wide-range compression adjuster for precise ride tuning
Large diameter shock bodies increase fluid capacity and cooling
Precision-tuned valving tailored for heavy-duty GM HD suspensions
Improved wheel travel and control compared to stock shocks
Fully rebuildable and serviceable design for long product life
Bolt-on installation - uses factory mounting locations
Ideal for towing, hauling, and off-road performance under load

Specifications

Part Number: 25001-303A
Application: Rear shocks (pair)
Shock Body Diameter: 2.5"
External Reservoir: Piggyback design
Adjustability: Optional compression adjuster (20 clicks)
Fitment: Chevrolet/GMC 2500HD & 3500HD 4WD (2011-2025)
Installation: Direct bolt-on to factory rear mounts
Rebuildable: Yes, serviceable internal components

Included Components

2x Rear 2.5" shocks with piggyback reservoirs (King 25001-303A)
Compression adjusters installed
Mounting hardware
Installation instructions

Product Description

The King Shocks 25001-303A Rear Shock Set is a high-performance suspension upgrade engineered specifically for heavy-duty Chevrolet and GMC 2500HD and 3500HD trucks from 2011 through 2025. Featuring large 2.5" shock bodies with piggyback reservoirs, these shocks provide increased fluid capacity and enhanced heat dissipation, helping maintain consistent damping performance under heavy loads, towing, hauling, and off-road use. The optional wide-range compression adjuster allows tailored damping control to match payload or terrain conditions.

Built with precision-tuned valving for GM HD rear suspension dynamics, the 25001-303A shocks bolt directly into factory mounting points with no welding or cutting required. These shocks deliver a noticeable upgrade in wheel control and ride quality over stock units while remaining fully rebuildable and serviceable for long-term use. Whether navigating rough roads, towing heavy trailers, or tackling demanding off-road terrain, King's OEM performance rear shocks help improve rear suspension response and stability.