ICON Vehicle Dynamics shock absorber.
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. 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.
Shocks are matched to a ride height range — confirm the lift height on the vehicle before ordering.
Use the vehicle selector to confirm your exact year and configuration.
ICON 2011-2026 GM 2500/3500 HD, 0-2" Lift, Rear, V.S. 3.0 Series Shock Absorbers, Remote Reservoir w/ CDEV, Pa
Vehicle fitment
Verified fitment (manufacturer data)| Years | Make | Model |
|---|---|---|
| 2020–2026 | Chevrolet | Silverado 2500 HD |
| 2020–2026 | Chevrolet | Silverado 3500 HD |
| 2020–2026 | GMC | Sierra 2500 HD |
| 2020–2026 | GMC | Sierra 3500 HD |
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | ICON Vehicle Dynamics |
| Part number | 71705EP |
| Position | Rear |
| Category | Suspension & Lift |
| Years | Make | Model |
|---|---|---|
| 2020–2026 | Chevrolet | Silverado 2500 HD |
| 2020–2026 | Chevrolet | Silverado 3500 HD |
| 2020–2026 | GMC | Sierra 2500 HD |
| 2020–2026 | GMC | Sierra 3500 HD |

Worth adding
Useful in any truck — ships separately in its own box.
Related parts
More in Shocks, Struts & Suspension.
Reviews
Verified customer reviews.











