ICON Vehicle Specific (V.S.) 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Like all ICON shock absorbers, V.S. 2.5 Aluminum Series shocks are 100% rebuildable and 100% revalveable. For piggyback and specific remote reservoir applications, ICON’s unique use of a 6061 billet aluminum manifold a few inches below the top cap of the shock creates an internal “Bump Zone” that when used creates an additional 20% of damping force. This additional force helps prevent harsh bottom outs and controls the suspension when compressing at high velocity. If you are looking for a more user defined tune, consider ICON compression adjustable shock absorbers equipped with CDCV, CDXS, or CDEV.
Features
- All ICON 2.5 Aluminum Series Remote Reservoir shocks can be upgraded with an ICON compression adjuster (CDCV, CDXS, or CDEV)
- ICON’s internal “Bump Zone” increases damping by 20% to provide more control as the shock approaches full compression
- One-piece, hard anodized, impact extruded aluminum cylinders offer excellent corrosion resistance and consistent finish
- Press in, bonded rubber bushing/bar pin assembly damps road vibration and provides OE factory type fitment
- Extended travel length requires aftermarket front upper control arms and provides maximum wheel travel
- Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
- 7/8” diameter induction hardened, chrome plated shock shaft
- Nitrogen charged monotube design with remote reservoir
- 6061 aircraft grade aluminum CNC machined components
- Compatible with 0-3.5" of front lift over stock
- 100% Rebuildable
- 100% Revalveable
Listed for 5 vehicles: the fitment table on this page shows each year, make and model it fits.
Sold as a pair.
ICON 11-26 GM 2500/3500 HD 0-3.5in Front VS 2.5 RR Pair
Vehicle fitment
Estimated fitment — verify before purchase| Years | Make | Model | Trim |
|---|---|---|---|
| 2011–2019 | Chevrolet | Silverado 2500 HD | |
| 2020–2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2020–2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2020–2026 | Chevrolet | Silverado 2500 HD | LT |
| 2020–2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020–2026 | Chevrolet | Silverado 2500 HD | WT |
| 2024–2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2017–2018 | Chevrolet | Silverado 3500 | |
| 2011–2019 | Chevrolet | Silverado 3500 HD | |
| 2020–2026 | Chevrolet | Silverado 3500 HD | High Country |
| 2020–2026 | Chevrolet | Silverado 3500 HD | LT |
| 2020–2026 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020–2026 | Chevrolet | Silverado 3500 HD | WT |
| 2020–2025 | Chevrolet | Silverado 3500 HD | Base |
| 2011–2019 | GMC | Sierra 2500 HD | |
| 2020–2026 | GMC | Sierra 2500 HD | AT4 |
| 2020–2026 | GMC | Sierra 2500 HD | Denali |
| 2020–2026 | GMC | Sierra 2500 HD | SLE |
| 2020–2026 | GMC | Sierra 2500 HD | SLT |
| 2020–2021 | GMC | Sierra 2500 HD | Base |
| 2022–2026 | GMC | Sierra 2500 HD | Pro |
| 2024–2026 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2024–2026 | GMC | Sierra 2500 HD | AT4X |
| 2011–2019 | GMC | Sierra 3500 HD | |
| 2020–2026 | GMC | Sierra 3500 HD | AT4 |
| 2020–2026 | GMC | Sierra 3500 HD | Denali |
| 2020–2026 | GMC | Sierra 3500 HD | SLE |
| 2020–2026 | GMC | Sierra 3500 HD | SLT |
| 2020–2021 | GMC | Sierra 3500 HD | Base |
| 2022–2026 | GMC | Sierra 3500 HD | Pro |
| 2024–2026 | GMC | Sierra 3500 HD | Denali Ultimate |
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | ICON Vehicle Dynamics |
| Part number | ICO71707P |
| Category | Suspension & Lift |

Worth adding
Useful in any truck — ships separately in its own box.
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