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Compact Internal Reservoir Damping for the Rear of Your GM HD
The ICON 76552 is a rear VS 2.0 HD internal reservoir shock built for 2011-2026 GM 2500HD and 3500HD trucks running 0 to 1.5 inches of rear lift. Unlike the piggyback equipped 76552RP and 76552RD, the 76552 houses its nitrogen charge and oil reservoir inside the main shock body, giving a slightly more compact package that still delivers vehicle specific valving tuned around the GM HD chassis. It is a strong choice for owners who want the ICON V.S. 2.0 damping curve without the extra clearance needs of a remote reservoir hose and canister.
Key Features
- Vehicle specific valving tuned for the GM 2500HD and 3500HD rear suspension
- Internal reservoir design keeps the shock compact with no remote hose or canister
- 6061 aluminum shock body resists corrosion and reduces unsprung weight
- 7/8 inch chrome plated shaft built to handle heavy payload and towing cycles
- 100 percent rebuildable and revalveable for long term serviceability
- Direct bolt-on replacement for factory rear shock mounting points
Fitment Table
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2011-2026 | Chevrolet | Silverado 2500HD | N/A |
| 2011-2026 | Chevrolet | Silverado 3500HD | N/A |
| 2011-2026 | GMC | Sierra 2500HD | N/A |
| 2011-2026 | GMC | Sierra 3500HD | N/A |
Specifications
| Detail | Value |
|---|---|
| MPN | 76552 |
| SKU | ICO76552 |
| Position | Rear |
| Reservoir Type | Internal |
| Lift Range | 0 to 1.5 inches |
| Shaft Diameter | 7/8 inch chrome plated |
| Body Material | 6061 Aluminum |
| UPC | 815024025994 |
What's Included
- 1 ICON 76552 Rear Internal Reservoir Shock
- Mounting Hardware
About ICON Vehicle Dynamics
ICON Vehicle Dynamics designs and manufactures performance suspension systems, shock absorbers, and steering components for trucks, Jeeps, and SUVs out of its Southern California facility. Every ICON shock is vehicle specific tuned and built to be 100 percent rebuildable, giving truck owners a long term suspension upgrade rather than a disposable part.
Frequently Asked Questions
What is the 76552?The 76552 is an ICON VS 2.0 HD internal reservoir shock built for the rear position on 2011-2026 GM 2500HD and 3500HD trucks with 0 to 1.5 inches of lift.
What is the difference between the 76552 and the 76552RP or 76552RD?The 76552 uses an internal reservoir housed inside the shock body, while the 76552RP and 76552RD use a remote piggyback reservoir mounted separately for additional oil capacity.
Is the 76552 sold as a left or right specific part?No, the 76552 internal reservoir shock is not side specific and can be installed on either the driver or passenger side rear position.
What lift height does the 76552 support?The 76552 is designed for 0 to 1.5 inches of rear lift on the GM 2500HD and 3500HD platform.
Is the 76552 rebuildable?Yes, all ICON V.S. 2.0 Aluminum Series shocks including the 76552 are 100 percent rebuildable and revalveable.
What trucks does the 76552 fit?The 76552 fits 2011-2026 Chevrolet Silverado 2500HD and 3500HD as well as GMC Sierra 2500HD and 3500HD models.
Can the 76552 be installed without a lift kit?Yes, the 76552 is designed to work with 0 to 1.5 inches of rear lift and can be installed as a direct upgrade over stock ride height shocks in that range.
What material is the 76552 body made from?The 76552 uses a one piece impact extruded 6061 aluminum body for corrosion resistance and reduced weight.
Install Instructions
- Raise and support the rear of the vehicle and remove the rear wheel on the side being serviced
- Remove the factory shock from the upper and lower mounting points
- Position the ICON 76552 internal reservoir shock into the mounting brackets
- Install and torque the upper and lower mounting hardware to specification
- Repeat on the opposite side if replacing both rear shocks
- Lower the vehicle and cycle the suspension to check for proper clearance
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