Installation Time
(approx) a Day
Difficulty Level:
Light to Moderate mechanical skill required.
FREE 1 to 3-Day Delivery on Orders $149+ Details
Rough Country Suspension 6-Inch Suspension Lift Kit with M1 Struts and Shocks (25-26 4WD V8 Silverado 1500 w/ OEM Mono-Leaf Springs, Excluding Trail Boss & ZR2)Find parts that fit my vehicle
Item S211889
Our Price
$2,009.95 kit
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Product Information
Features, Description, Q&A, Specs & Installation
Features & Specs
- Explore New Heights With Aggressive Angles And Head-Turning Styling
- Preserves Ride Quality By Maintaining Factory Suspension Geometry
- Durable Steel Knuckles, Differential Brackets, And Drop Cross Members Included
- Upper Strut Spacers Provide Strength And Rigidity For Lift Height
- Rear Blocks, Shocks, And U-Bolts Retain Factory-Like Geometry
- Allows Clearance For 35-Inch Tires Without Additional Modifications
- Configurable With Multiple Shock Options Including Nitrogen-Charged N3 And Vertex Reservoir Shocks
- Installation Requires Minor Cutting, Drilling, And Use Of Strut Compressor
- Estimated Installation Time Of 8-10 Hours
- Limited Lifetime Replacement Warranty Against Manufacturer Defects
- Lifts And Levels Vehicle For Commanding Presence
- High-Clearance Crossmember Design Maintains Superior Handling
- Heavy-Duty Cast Knuckles For Rugged Terrain Endurance
- Retains Stock Track Width For Proper Wheel Alignment And Stability
- Precision 100% Laser-Cut Materials Using Advanced CAD Technology
- Heavy-Duty Fabricated Blocks Offer Superior Strength And Longevity
- Does Not Fit LT Trail Boss Or Custom Trail Boss Models Due To 2-Inch Factory Lift
- Does Not Fit ZR2 Models Equipped With 2-Inch Factory Lift And Multimatic DSSV Dampers
- Does Not Fit Factory Wheels; Requires 20-Inch Or Larger Aftermarket Wheels
- Wheels Must Feature 4.5-Inch Backspacing To Fit Properly
- Some Aftermarket Wheels May Require 0.25-Inch Wheel Spacer
- Includes Front Lifted Knuckles, Upper Strut Spacers, Preload Spacers, Crossmembers, Differential Drop Brackets, Skid Plates, Sway-Bar Drop Brackets, And Hardware
- Includes Rear Fabricated Lift Blocks, Brake Line Brackets, U-Bolts, And Hardware
- Includes Two Premium N3 Shock Absorbers
- Fits 25-26 4WD V8 Silverado 1500 w/ OEM Mon-Leaf Springs, Excluding Trail Boss And ZR2 Models Due To Factory Lift Differences
| Brand | Rough Country Suspension |
| Lift Height | 6.00 Inch |
| Lift Kit Type | Coil Spring Lift |
| Lift Kit Max Tire Size | 35 Inch |
| Brand of Shocks | Rough Country |
| Rear Lift Type | Spacer |
| Shock Style | Non-Reservoir |
Description
High-Performance Lift Kit. The Rough Country Suspension 6-Inch Suspension Lift Kit enhances your Silverado 1500 by raising the vehicle for increased ground clearance and an aggressive stance. It’s designed to improve off-road capability, allowing installation of 35-inch tires without additional modifications while maintaining ride quality and handling. This kit is ideal for enthusiasts seeking both aesthetics and a functional suspension upgrade.
Construction and Appearance. Constructed with heavy-duty steel components including cast knuckles and reinforced crossmembers, the kit ensures durability on rugged terrain. Precision laser-cut materials and advanced CAD technology guarantee a perfect fit. Finished with durable coatings to resist corrosion, it maintains a professional look and long-term reliability.
Installation. Installation requires a moderate skill level including minor cutting, drilling, and the use of a strut compressor. The full procedure typically takes 8-10 hours to complete.
Warranty. This suspension lift kit is backed by a limited lifetime replacement warranty covering manufacturer defects for peace of mind.
Application. Designed specifically for the 2025-2026 4WD V8 Silverado 1500 equipped with OEM Mon-Leaf Springs. It is not compatible with Trail Boss or ZR2 models due to their factory-installed 2-inch lifts and specialized dampers. This kit does not fit factory wheels and requires 20-inch or larger aftermarket wheels with 4.5-inch backspacing; some aftermarket wheels may require 0.25-inch spacers to fit properly.
Rough Country Suspension 21640_A
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (2) M1 Front Monotube Loaded Struts
- (2) M1 Rear Monotube Shocks
- (1) Set Cast Steel Front Knuckles
- (1) Front Crossmember Assembly
- (1) Rear Crossmember / Differential Skid Plates & Drop Brackets
- (1) Set Fabricated Rear Lift Blocks + U-Bolts
- (1) Set Sway Bar Drop Brackets & Brake Line Brackets
- (1) Hardware Kit (bolts, washers, etc.)
- Instructional Manual
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
Questions & Answers
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Will It Fit My Silverado 1500
- 5.3L V8 - 25, 26
- 6.2L V8 - 25, 26
