The Tuff Country 3.5" SX8000 Lift Kit with Shocks is a bolt-on suspension upgrade designed for 2011–2018 Chevrolet Silverado 2500HD/3500 and 2011–2019 GMC Sierra 2500HD/3500 4WD. It’s built to deliver reliable lift, improved tire clearance, and durable, USA-made components with a straightforward installation.
- Lift Height: 3.5 inches of front suspension lift to accommodate larger tires while preserving ride quality.
- Shocks Included: SX8000 front shocks are included for a complete, ready-to-install package.
- Bolt-on Installation: Designed for simple installation with no cutting or welding required.
- Tire Clearance: Increases room for up to 35" tires with minor trimming for improved off-road capability.
- Upper Control Arms: Heavy-duty tubular upper control arms maintain factory geometry for predictable handling.
- Reinforced Arm Eyelets: Strengthened connections ensure long-lasting performance under load and articulation.
- Cast Iron Lift Blocks: Heavy, purpose-built blocks engineered specifically for your vehicle.
- Suspension Limiting Straps: Included for controlled articulation and safety during flexing.
- Front Shock Extenders: Allow you to keep factory shocks in place while achieving the 3.5" lift (extenders included).
- Finish & Durability: Powder-coated finish provides lasting protection against corrosion and wear.
- US-Made & Warranty: Proudly made in the USA with a limited lifetime warranty for peace of mind.
- Backspacing & Fitment: Works with rims backspacing of 5.5" or less; factory tires and wheels can be used in most setups. Will not fit dually models.
- Installation Time: Typical install takes about 8–10 hours for a weekend project.
This Tuff Country kit is ideal for truck enthusiasts who want a straightforward, reputable upgrade that expands off-road range and tire options without sacrificing street manners. Use it to run up to 35" tires on your Silverado/Sierra 2500HD/3500 4WD, while keeping alignment and geometry intact thanks to the engineered control arms and solid cast blocks. When you choose Tuff Country, you’re leaning on more than 35 years of suspension expertise, a limited lifetime warranty, and the confidence that comes from buying from the world’s leading retailer of Tuff Country products.
