ICON Vehicle Dynamics suspension lift kit.
Tougher, stronger and more capable - That's the motto that General Motors used when debuting the all-new fleet of heavy-duty trucks in 2020. ICON Vehicle Dynamics stayed true to GM engineers' thought process with the development of our suspension systems for the 2020-2026 Chevrolet Silverado 2500 HD/3500 HD and GMC Sierra 2500 HD/3500 HD trucks. Using ICON's holistic engineering philosophy, our R&D team went above and beyond to develop several stages of complete suspension systems that provide varying levels of adjustability, capability, and overall vehicle performance. Remote reservoirs also greatly increase shock oil volume and heat dissipation surface area to resist overheating and cavitation under hard use, which can lead to damper fade. Focus on driving and let ICON Intelligent Control (IIC) read the terrain and make near-instant adjustments via the Compression Damping Electronic Valve (CDEV) at each individual shock. Control the system wirelessly through the IIC app on your phone and once configured the system functions without driver input. Additionally, replacing the OE ball joint with the serviceable and rebuildable ICON Delta Joint Pro HD allows for full bump and droop travel of the front suspension while eliminating bind. The included torsion keys install onto the factory torsion bars and allow for 2-3.5” of front lift height adjustment to allow for a level stance and larger, more aggressive wheel and tire fitment. While driving the construction site or trails to your favorite dirt bike location, ICON wants you to get there in comfort, just like your drive to work.
A suspension lift raises ride height to clear larger tires; component kits vary in what they include, so check the parts list.
Use the vehicle selector to confirm your exact year and configuration.
ICON 2020-2026 Chevrolet Silverado/GMC Sierra 2500/3500 HD, 2-3.5" Lift, Stage 6 Suspension System, Billet
Vehicle fitment
Verified fitment (manufacturer data)| Years | Make | Model | Trim |
|---|---|---|---|
| 2020–2026 | Chevrolet | Silverado 3500 HD | LT |
| 2020–2026 | Chevrolet | Silverado 3500 HD | WT |
| 2020–2026 | Chevrolet | Silverado 3500 HD | High Country |
| 2020–2026 | Chevrolet | Silverado 3500 HD | LTZ |
| 2020–2026 | GMC | Sierra 2500 HD | AT4 |
| 2020–2026 | GMC | Sierra 2500 HD | Denali |
| 2020–2026 | GMC | Sierra 2500 HD | SLE |
| 2020–2026 | GMC | Sierra 2500 HD | SLT |
| 2020–2021 | GMC | Sierra 2500 HD | Base |
| 2022–2026 | GMC | Sierra 2500 HD | Pro |
| 2024–2026 | GMC | Sierra 2500 HD | AT4X |
| 2024–2026 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2020–2026 | GMC | Sierra 3500 HD | SLE |
| 2020–2026 | GMC | Sierra 3500 HD | AT4 |
| 2020–2026 | GMC | Sierra 3500 HD | Denali |
| 2020–2026 | GMC | Sierra 3500 HD | SLT |
| 2020–2021 | GMC | Sierra 3500 HD | Base |
| 2022–2026 | GMC | Sierra 3500 HD | Pro |
| 2024–2026 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2020–2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2020–2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2020–2026 | Chevrolet | Silverado 2500 HD | LT |
| 2020–2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2020–2026 | Chevrolet | Silverado 2500 HD | WT |
| 2024–2026 | Chevrolet | Silverado 2500 HD | ZR2 |
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | ICON Vehicle Dynamics |
| Part number | K78366 |
| Category | Suspension & Lift |
| Years | Make | Model |
|---|---|---|
| 2020–2026 | Chevrolet | Silverado 3500 HD |
| 2020–2026 | GMC | Sierra 2500 HD |
| 2020–2021 | GMC | Sierra 2500 HD |
| 2022–2026 | GMC | Sierra 2500 HD |
| 2024–2026 | GMC | Sierra 2500 HD |
| 2020–2026 | GMC | Sierra 3500 HD |
| 2020–2021 | GMC | Sierra 3500 HD |
| 2022–2026 | GMC | Sierra 3500 HD |
| 2024–2026 | GMC | Sierra 3500 HD |
| 2020–2026 | Chevrolet | Silverado 2500 HD |
| 2024–2026 | Chevrolet | Silverado 2500 HD |

Worth adding
Useful in any truck — ships separately in its own box.
Related parts
More in GMC Lift Kits.
Reviews
Verified customer reviews.











