
Questions about fitment?
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We’ll help you verify fitment before you buy.
Veteran-owned · Austin, Texas · Mon–Fri 9:30a–11:00a & 1:00p–5:30p CT
Important notes before you order
- APPLICATION NOTE #55: Shocks Are Fully Serviceable. Lift Heights Indicated Are For A Stock Equipped Vehicle.
- APPLICATION NOTE #152: ICON Delta Joint Pro upper control arms required
- APPLICATION NOTE #198: An iOS operated device is required to run ICON Intelligent Control app
- APPLICATION NOTE #203: Also requires installation of applicable IIC kit and CDEV rear shocks
- APPLICATION NOTE #298: Compatible with 0-3.5" of front lift on most Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD submodels. Compatible with 0-2" of front lift on Chevrolet Silverado 2500 ZR2 and GMC Sierra 2500 AT4X.
Specifications
| Brand | ICON Vehicle Dynamics |
|---|---|
| Part number | 71704EP |
| UPC / GTIN | 840103436296 |
| Active or Passive Suspension | Active |
| Adjustable | Yes |
| Adjustable Compression | Yes |
| Adjustable Damping | Yes |
| Adjustable Rebound | No |
| Boot Included | NO |
| Bore Diameter | 2.75 IN |
| Compressed Length | 14.02 IN |
| Cylinder Color | Gray |
| Cylinder Diameter | 3 IN |
| Cylinder Material | Steel |
| Damping Adjustment Type | Electronic |
| Damping Type | Oil |
| Extended Length | 19.55 IN |
| External Reservoir | Yes |
| Gas Charged | Yes |
| Grade Type | Performance |
| Includes Bump Stop | No |
| Lower Mount Type | Clevis |
| Mounting Hardware Included | Yes |
| Reservoir Type | Remote |
| Shaft Diameter | 0.875 IN |
| Shaft Material | Chrome |
| Shock Absorber Body End Measuring Point | Flats on Bar Pin |
| Shock Absorber Rod End Measuring Point | Center of Clevis Holes |
| Stroke Length Front | 5.53 IN |
| Tube Outside Diameter | 3 IN |
| Upper Mount Type | Bar Pin |
| Valving Type | Linear/Digressive |
| Country of Origin | US |
California Proposition 65 warning applies to this product. www.P65Warnings.ca.gov
Features
- Compatible with 0-3.5" of front lift over stock
- Vehicle specific design and tuning for superior shock damping and control
- 3.0” Body diameter for increased oil volume and larger piston area
- Extended travel length requires ICON Delta Joint Pro front upper control arms and provides maximum wheel travel
- ICON’s internal “Bump Zone” increases damping by 20% to provide more control as the shock approaches full compression
- Nitrogen charged monotube design with remote reservoir
- Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
- ICON's CDE Valve technology allows for in vehicle adjustment of compression damping settings and active adjustment via the ICON Intelligent Control (IIC)
- Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range
- One-piece linear compression/digressive rebound piston design with vehicle specific valving for unsurpassed performance and ride quality on and off-road
- 7/8” diameter induction hardened, chrome plated shock shaft
- Press in, bonded rubber bushing/bar pin assembly damps road vibration and provides OE factory type fitment
- 6061 aircraft grade aluminum CNC machined components
- Cerakoted steel cylinders offer excellent corrosion resistance and consistent finish
- 100% Rebuildable
- 100% Revalveable
Installation
Free install support from the Trucks R Us tech team, for you or your shop.
Overview
ICON Vehicle Specific (V.S.) 3.0 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. 3.0 Series shocks boast 50% more piston surface area compared to 2.5 Series shocks. This translates into increased stability and vehicle control at the extremes of off-road use, with benefits also making themselves apparent in on-road driving conditions. Increased internal oil volume and more external surface area compared to 2.5 Series shocks offer improved heat dissipation and resistance to shock fade under hard use. Like all ICON shock absorbers, V.S. 3.0 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.
The ICON CDE Valve upgrade is included for those desiring an easy way to tune the ride electronically from inside the vehicle. Compression Damping Electronic Valve (CDEV) is an electronically controlled valve that meters the flow of oil to regulate the amount of damping force that is created by the shock when compressed. This infinitely variable valve can react in less than 40ms and has the ability to make extremely precise adjustments for varying terrain. CDEV’s hydraulic circuits are also custom tailored per application to create the highest resolution and dynamic range allowable for each specific vehicle. Powered by ICON Intelligent Control and proprietary ICON mobile app, the system uses information from the onboard G-force sensor and Gyroscope to perform calculations based on algorithms and user-defined settings to predict terrain and adjust shock settings via the CDEV accordingly.
Questions
Will this fit my truck?
Select your truck at the top of the page and the fit check will confirm it. If your exact trim is not listed, call 866-235-4715 or live chat and a fitment specialist will check it before you order.
Do you help with installation?
Yes. Our technical team helps you or your shop with installation and troubleshooting after delivery, on top of the manufacturer’s support.
What if the part has a problem?
We work the warranty claim with the manufacturer on your behalf, within the manufacturer’s warranty policy.
Can I return it?
Most items can be returned within 30 days. See our return policy for details.
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About ICON Vehicle Dynamics
ICON Vehicle Dynamics specializes in performance suspension components, shocks, and accessories for today’s most popular trucks & SUVs. Since 2008, ICON has been developing products that redefine the limits of what a “stock” vehicle is capable of. ICON is part... Shop all ICON Vehicle Dynamics