Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
FREE 1 to 3-Day Delivery on Orders $149+ Details
Rough Country Suspension 4-Inch Suspension Lift Kit with Premium N3 Shocks (25-26 3.0L Duramax Silverado 1500 Trail Boss)Find parts that fit my vehicle
Item S201286
Our Price
$1,449.95 kit
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$72.50 Available in AT Cash Rewards.
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features & Specs
- Lifts and levels the vehicle from front to rear
- High clearance crossmember design for optimal suspension geometry
- Includes cast knuckles for extreme durability
- Retains stock track width
- No strut disassembly required
- 100% precision laser cut materials using the latest computer-aided design process
- Fabricated blocks are stronger and offer a longer lifespan than cast blocks
- Requires cutting and drilling
- Only fits LT Trail Boss, Custom Trail Boss, and AT4 models equipped with a 2-inch factory lift
- Does not fit factory wheels; 20-inch or larger aftermarket wheels are required
- Wheels must feature 4.5-inch backspacing to fit
- Some aftermarket wheels may require 0.25-inch wheel spacer
- Fits 25-26 3.0L Duramax Silverado 1500 Trail Boss
| Brand | Rough Country Suspension |
| Lift Height | 4.00 Inch |
| Lift Kit Type | Spacer Lift |
| Lift Kit Max Tire Size | 35 Inch |
| Brand of Shocks | Rough Country |
| Rear Lift Type | Spacer |
| Shock Style | Non-Reservoir |
Description
Suspension Lift Enhancement. The Rough Country Suspension 4-Inch Suspension Lift Kit with Premium N3 Shocks elevates the Sierra 1500 AT4, Silverado 1500 Trail Boss, and Custom Trail Boss models to new heights, improving off-road clearance and aggressive styling. This kit is designed to enhance suspension geometry and accommodate larger tires, giving your truck a commanding presence both on rugged trails and city streets.
Durable Design and Quality Construction. Constructed using durable cast knuckles, drop crossmembers, and fabricated lift blocks, this kit maintains factory suspension angles for ride quality and longevity. It utilizes precision laser-cut materials and features components finished for strength and rigidity, ensuring lasting performance under demanding conditions.
Installation. Installation requires minor cutting and drilling, with an estimated completion time of 8-10 hours. The process is suitable for experienced home mechanics equipped with mechanical tools. No strut disassembly is necessary for this installation.
Warranty. This suspension lift kit is backed by a limited lifetime replacement warranty against manufacturer defects, providing long-term assurance for structural and workmanship quality.
Application. Specifically designed to fit 2025-2026 3.0L Duramax Silverado 1500 Trail Boss models equipped with the factory 2-inch lift. Not compatible with factory wheels; requires 20-inch or larger aftermarket wheels with 4.5-inch backspacing.
Rough Country Suspension 110330D
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (4) N3 Shock Absorbers
- Front and Rear Fixed Lower Control Arms
- Front Lifted Coil Springs
- Front Extended Sway-Bar Links
- Front Crossmember Spacers
- Rear Track Bar Bracket
- Installation Hardware
Tech Guides:
- Lift Kit vs Leveling Kit: Which Upgrade Is Right for Your Truck?
- Top Lift Kits for the Chevy Silverado 1500
- How Much Lift Does My Truck Need? Picking the Right Lift Height
- Pros and Cons of Lifting Your Truck: What Every Owner Should Know
- Towing Suspension Upgrades: Suspension Components to Improve Towing Capability
- Lift Kits - How Adding Ground Clearance Makes Trucks More Capable Off-Road
- Do Lifted Trucks Use More Fuel? MPG Loss by Lift Height, Tire Size, and How to Save
- Do I Need a Suspension Lift to Fit 35s on Chevy Silverado?
- What Is Rake? How Leveling Your Truck Improves Appearance
- FAQ What Are The Best Suspension Systems? How Suspension Systems Work
- Off-Road Suspension 101: What To Know Before You Go
- Lift Kits vs. Leveling Kits: What’s the Difference?
- 8 Most Popular Rides to Upgrade Suspensions in 2021
- Lifting your Chevrolet Silverado for Work or Play
4.7
Customer Reviews (31)
Questions & Answers
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Will It Fit My Silverado 1500
- 3.0L I6 Duramax - 25, 26
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