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ICON 71705XP: Dual-Speed Adjustable Rear Shocks for Your GM HD
The ICON 71705XP pairs two Vehicle Specific (V.S.) 3.0 Series remote-reservoir rear shocks with ICON's Compression Damping Dual Speed (CDXS) valves for 2011-2026 GM 2500/3500 HD trucks running 0-2in of lift. CDXS gives independent control over high-speed and low-speed compression damping through 10 discreet detented settings on each adjustment knob, letting you separately tune handling response and overall ride aggressiveness beyond what single-valve CDCV shocks offer.
Key Features
- Vehicle-specific length and damping tune for 2011-2026 GM 2500/3500 HD, 0-2in lift, rear
- Compression Damping Dual Speed (CDXS) valves with independent high-speed and low-speed adjustment
- 10 discreet detented settings on both low-speed and high-speed compression knobs
- 50% more piston surface area than ICON 2.5 Series shocks for increased stability and control
- Remote reservoir design with 6061 billet aluminum manifold "Bump Zone" for up to 20% additional damping force
- 100% rebuildable and 100% revalveable
- Sold as a pair (2 shocks)
Vehicle Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2011-2026 | Chevrolet | Silverado 2500 HD/3500 HD | 0-2in Lift, Rear |
| 2011-2026 | GMC | Sierra 2500 HD/3500 HD | 0-2in Lift, Rear |
Specifications
| Detail | Value |
|---|---|
| ICON Part Number | 71705XP |
| Series | V.S. 3.0 Remote Reservoir with CDXS |
| Position | Rear |
| Lift Range | 0-2in |
| Adjustment | Independent high-speed and low-speed compression, 10 settings each |
| Quantity | Pair (2 shocks) |
| UPC | Not published by manufacturer |
What's Included
- 2x ICON V.S. 3.0 Remote Reservoir Rear Shocks with CDXS
- Mounting hardware
About ICON
ICON Vehicle Dynamics designs suspension systems engineered for both off-road capability and on-road comfort. Its CDXS valve technology gives serious off-road enthusiasts the ability to separately dial in high- and low-speed compression damping for a level of tuning precision beyond ICON's standard CDCV shocks.
Frequently Asked Questions
What is the ICON 71705XP?
The ICON 71705XP is a pair of Vehicle Specific 3.0 Series remote-reservoir rear shocks with Compression Damping Dual Speed (CDXS) valves, built for 2011-2026 GM 2500/3500 HD trucks with 0-2in of lift.
What is the difference between CDXS and CDCV?
CDCV offers a single adjustable compression valve, while CDXS provides independent adjustment of both high-speed and low-speed compression damping for more precise tuning.
How many adjustment settings does CDXS offer?
CDXS provides 10 discreet detented settings for both the low-speed and high-speed compression knobs.
Are these shocks rebuildable?
Yes. All ICON shocks, including the 71705XP, are 100% rebuildable and 100% revalveable.
How many shocks come in this listing?
This listing includes a pair — two rear shocks — for one vehicle.
What lift height are these shocks designed for?
These rear shocks are tuned for 0-2in of lift on 2011-2026 GM 2500/3500 HD trucks.
Will these fit both Chevrolet and GMC HD trucks?
Yes. They fit 2011-2026 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD trucks.
Does ICON offer a warranty on these shocks?
Contact ICON Vehicle Dynamics or your authorized dealer for current warranty terms on V.S. 3.0 Series CDXS shocks.
Install Instructions
- Support the vehicle on jack stands and remove the rear wheels
- Remove the factory rear shocks from their upper and lower mounting points
- Install the ICON 71705XP shocks, securing upper and lower mounts with provided hardware
- Torque all mounting hardware to ICON's specified values
- Adjust the high-speed and low-speed CDXS compression knobs to your preferred settings
- Reinstall wheels and test drive, rechecking torque after initial break-in
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