Tuff Country 13085 3.5" Lift Kit with Upper Control Arms Torsion Bars Keys and Rear Blocks / U-Bolts (Includes Front Shock Relocating Bracket No Shocks
Tuff Country
13085
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Tuff Country 13085 3.5" Lift Kit with Upper Control Arms Torsion Bars Keys and Rear Blocks / U-Bolts (Includes Front Shock Relocating Bracket No Shocks
Product Details
Description
Raise your GMC Sierra 2500HD with confidence using the Tuff Country 13085 3.5" Lift Kit. This bolt-on suspension system adds front lift while keeping factory shock compatibility, delivering an enhanced stance and proven durability for off-road adventures.
- Lift Height: 3.5" front / 1" rear lift to level the stance and expand off-road capability.
- Heavy‑duty Upper Control Arms: tubular arms with reinforced eyelets to maintain factory geometry and long-term durability.
- Front Shock Relocation Bracket Included: front shock relocation hardware plus extenders to preserve ride characteristics with stock shocks.
- Cast Iron Lift Blocks: precisely engineered blocks designed specifically for the Sierra 2500HD for reliable support.
- Rear Suspension Hardware: rear blocks and U-bolts with all necessary mounting components for a complete install.
- Shocks Included: none included in this kit; factory shocks can be reused if desired.
- Bolt‑on Installation: designed for straightforward installation with no cutting or welding required.
- Made in the USA: proudly manufactured in the United States with attention to build quality.
- Warranty: backed by a limited lifetime warranty for lasting peace of mind.
- Fitment Notes: compatible with 2011–2018 GMC Sierra 2500HD 4WD, 2011–2018 GMC Sierra 3500 4WD, and 2011–2019 Silverado 3500 4WD; not for dual rear wheel (dually) models.
- Tire & Wheel Guidance: provides additional clearance for up to 35" tires with minor trimming; 33" x 12.5" or 35" x 11.5" tires are recommended with 5.5" or less backspacing for best results.
Benefits: This lift kit unlocks serious off-road capability without sacrificing daily-drive comfort. It adds the ground clearance to tackle rough terrain, improves approach and departure angles, and allows larger tires with modest trimming. The reinforced upper control arms preserve alignment geometry, helping you maintain predictable handling and tire wear. With bolt-on install and factory-shock compatibility, you can upgrade your Sierra 2500HD’s stance and capability while relying on the proven Tuff Country heritage and a lifetime warranty for lasting value.
| Year Range | Make | Model | Drivetrain | Fitment Note |
|---|---|---|---|---|
| 2011-2018 | Chevy | Silverado 2500HD | 4WD | |
| 2011-2019 | Chevy | Silverado 3500 | 4WD | |
| 2011-2018 | GMC | Sierra 2500HD | 4WD | |
| 2011-2018 | GMC | Sierra 3500 | 4WD | Will not fit dually model |
Specifications:
FAQs
Please read our FAQs page to find out more.
Will this part fit my vehicle?
Fitment varies by year, make, model, drivetrain, and lift height. Always use the vehicle fitment selector or refer to the fitment notes on the product page before purchasing. If you’re unsure, our team can help confirm compatibility.
Are Tuff Country products street legal?
Most Tuff Country products are designed for on-road and off-road use, but local laws and regulations vary by state and country. It is the customer’s responsibility to ensure compliance with local vehicle regulations after installation.
Is professional installation required?
Professional installation is recommended but not required. Many products can be installed by experienced DIYers with proper tools. However, improper installation can affect ride quality, safety, and warranty coverage.
Will this affect my ride quality?
Tuff Country products are engineered to balance ride comfort, performance, and durability. Ride quality can change depending on lift height, vehicle setup, tire size, and other suspension components.
Are Tuff Country products covered by a warranty?
Yes. Tuff Country products are backed by a manufacturer warranty that covers defects in materials and workmanship. Warranty terms vary by product type and do not cover damage caused by misuse, improper installation, or normal wear.
Can I run larger tires with this product?
Many Tuff Country lift kits and suspension components allow for larger tire sizes, but maximum tire clearance depends on wheel offset, tire width, and vehicle configuration. Refer to the product details or contact support for guidance.
What is the return policy?
Unused, uninstalled products may be eligible for return within the stated return window. Items must be in new condition and returned in original packaging. Shipping costs and restocking fees may apply.
Who can I contact if I have questions?
Our customer support team is available to help with fitment questions, installation guidance, and order support. Reach out before purchasing if you want to ensure you’re selecting the right part for your build.
Free shipping on Orders Over $75
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Selling Suspension Systems for 35+ Years
Tuff Country EZ-Ride Suspension was incorporated over 35 years ago, realizing the desperate need for quality suspension products in the after market world.