Rough Country Suspension 4-Inch Suspension Lift Kit with Premium N3 Shocks (25-26 3.0L Duramax Sierra 1500 AT4)Find parts that fit my vehicle

Name: Rough Country Suspension 4-Inch Suspension Lift Kit with Premium N3 Shocks (25-26 3.0L Duramax Sierra 1500 AT4)
Brand: Rough Country Suspension
SKU: S582555
Price: 1449.95 USD
Availability: InStock
Rating: 4.7 (31 reviews)

Item S582555

31 Reviews

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-0% $1,449.95 Was $1,449.95

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Product Information

Features, Description, Reviews, Q&A, Specs & Installation

Features & Specs

Lifts and levels the vehicle from front to rear by approximately 4 inches
High clearance crossmember design to optimize suspension geometry and accommodate larger tires
Includes cast steel knuckles for extreme durability and improved CV axle angles
Retains factory track width for proper stance and handling
No strut disassembly required for installation
Precise laser-cut materials manufactured using advanced computer-aided design
Fabricated rear lift blocks are stronger and offer longer lifespan than traditional cast blocks
Requires moderate cutting and drilling during installation
Designed to fit 2025-2026 Chevy Silverado 1500 LT Trail Boss, Custom Trail Boss, and GMC Sierra 1500 AT4 4WD models equipped with the factory 2-inch lift
Does not fit factory wheels; requires 20-inch or larger aftermarket wheels with 4.5-inch backspacing
Some aftermarket wheels may require 0.25-inch wheel spacers for proper fitment
Specifically fits 2025-2026 3.0L Duramax GMC Sierra 1500 AT4 as part of the application range

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 raises the ride height of your 2025-2026 Chevrolet Silverado 1500 LT Trail Boss, Custom Trail Boss, and GMC Sierra 1500 AT4 equipped with the factory 2-inch lift. This lift provides improved ground clearance, aggressive off-road styling, and the ability to run larger tires while maintaining ride quality.

Construction and Appearance. The kit features durable cast steel knuckles, drop crossmembers, and differential drop brackets to reduce CV axle angles and preserve factory suspension geometry. All components are precision laser cut using computer-aided design processes. Fabricated rear lift blocks replace cast blocks for enhanced strength and longevity. The included nitrogen-charged Premium N3 shocks provide responsive damping for a smooth and controlled ride.

Installation. Installation requires moderate mechanical skill, including minor cutting and drilling. The process typically takes between 8 and 10 hours and can be completed with common garage tools and attention to detail.

Warranty. This lift kit includes a limited lifetime replacement warranty covering manufacturer defects and workmanship.

Application. Specifically designed for 2025-2026 3.0L Duramax Sierra 1500 AT4 models equipped with the factory 2-inch lift, this kit does not fit standard or other Sierra trims without the factory lift option and requires aftermarket wheels with specified backspacing and size.

Rough Country Suspension 110330D

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