ICON V.S. 2.5 Series Front Coilover Kit for 2007-2018 Silverado 1500 / Sierra 1500 with CST 8" Lift

The ICON Vehicle Dynamics V.S. 2.5 Series Front Coilover Kit is a full-length, internal-reservoir coilover pair engineered for 2007–2018 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks running a CST 8" lift suspension system. The 2.5" shock body and vehicle-specific valving deliver improved damping and lift-height adjustability that OE coilovers with top-mount spacers cannot match.

Shipping: ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.

Full-Length Design Removes the Spacer Compromise

OE coilovers paired with an 8" lift typically require a top-mount spacer that shortens available wheel travel and can introduce harshness. The ICON V.S. 2.5 Series coilovers are built to the correct application-specific length for the CST 8" system, so the spacer is eliminated entirely. The result is more usable wheel travel and a suspension geometry that works the way the lift kit intends.

Vehicle-Specific Valving for On- and Off-Road Control

ICON tunes the internal valving to the weight, geometry, and intended use of the Silverado 1500 and Sierra 1500 platform rather than applying a generic calibration. That specificity translates to superior low-speed body-roll control on pavement and composed damping over broken terrain off-road. Lift-height adjustability lets owners fine-tune ride height and stance after installation without replacing components.

Built to Be Serviced, Not Replaced

The 2.5" shock body is finished with a corrosion-resistant CAD plating, and the 7/8" shaft is sized for durability under repeated off-road loading. The fully serviceable design supports revalves and rebuilds, extending service life well beyond what a sealed unit allows. ICON-engineered coil springs carry a lifetime guarantee against sagging or breakage. Pairing these front coilovers with ICON 2.0 Aluminum Series or 2.5 Series rear shocks balances damping front to rear across the GM 1500 platform.

Features

• 2.5" shock body: larger piston area over stock for improved damping ability
• Internal reservoir: aids heat dissipation during sustained off-road use
• Lift-height adjustable: allows fine-tuning of vehicle stance post-install
• CAD-plated body with 7/8" shaft: corrosion-resistant finish for long service life
• Fully serviceable: supports revalves and rebuilds; not a sealed, replace-only unit
• Bolt-in installation: mounts to OEM shock location without modification

Specifications

Who This Is For and Isn't

These coilovers suit 2007–2018 Chevrolet Silverado 1500 and GMC Sierra 1500 owners who have installed a CST 8" lift system and want a full-length coilover that eliminates the top-mount spacer, provides vehicle-specific damping, and supports long-term serviceability on and off-road.

These coilovers are application-specific to an 8" lift environment and are not designed for stock-height or mildly lifted Silverado 1500 / Sierra 1500 trucks. They do not fit the rear position; a separate ICON rear shock is required for full front-to-rear balance. Compatibility with 8" lift kits other than the CST system is possible but not guaranteed; confirm fitment with your lift kit documentation before ordering.

Common Questions

Do these coilovers work with lift kits other than the CST 8" system?

The ICON V.S. 2.5 Series front coilovers (71002-CB) are specifically designed for the CST 8" lift suspension system on 2007–2018 Silverado 1500 and Sierra 1500 trucks. Compatibility with other 8" lift kits is possible but not guaranteed; confirm fitment against your lift kit's documentation before ordering.

Why does a full-length coilover matter on an 8" lifted truck?

An 8" lift typically forces OE coilovers to run with a top-mount spacer, which reduces available wheel travel and can compromise ride quality. The ICON V.S. 2.5 Series coilovers are built to the correct application-specific length for this lift height, eliminating the spacer and restoring the wheel travel and damping geometry the system is designed to deliver.

Can the ride height be adjusted after installation?

Yes. The ICON V.S. 2.5 Series coilovers include lift-height adjustability, allowing owners to fine-tune vehicle stance after the initial installation. Coilover height references are based on a stock-equipped vehicle, so adjustments should account for any additional weight or accessories on the truck.

Are these coilovers rebuildable, or do they need to be replaced when worn?

The ICON V.S. 2.5 Series coilovers are fully serviceable: they support revalves and rebuilds rather than requiring full replacement. The ICON-engineered coil springs also carry a lifetime guarantee against sagging or breakage, which further extends the usable life of the assembly.

What rear shocks pair with these front coilovers?

ICON recommends pairing these front coilovers with ICON 2.0 Aluminum Series or 2.5 Series rear shocks on the GM 1500 platform. Matching the front and rear damping characteristics balances vehicle control and delivers the most consistent ride quality on and off-road.