3.5" 2014-2018 GMC Sierra 1500 4WD Knuckle Lift Kit by Rough Country

The Rough Country 12130 3.5" Knuckle Lift Kit delivers the perfect combination of aggressive styling, increased ground clearance, and everyday drivability for your 2014–2018 GMC Sierra 1500 4WD. Designed to provide a bold stance without going too tall, this complete suspension system enhances both appearance and capability for street or trail use.

At the center of this kit are precision-engineered lifted knuckles that retain factory suspension geometry and components for dependable performance and easier installation. Unlike many standard lift systems, the knuckle design helps reposition the CV axle for improved clearance from the lower control arm, reducing CV boot stress and improving long-term drivetrain durability.

Front lift is achieved using either strut spacers or replacement struts / coilovers depending on the selected configuration. This allows you to tailor ride quality and performance to your preferred setup while maintaining excellent street manners.

In the rear, heavy-duty 3" fabricated lift blocks and extended U-bolts provide dependable lift height and superior strength compared to common cast blocks. This setup levels the truck front to rear, eliminating the factory rake for a clean and aggressive profile.

The system includes (2) Premium N3 shock absorbers, offering nitrogen-charged performance with balanced on-road comfort and off-road capability. Additional Rough Country shock and strut upgrades may also be available depending on configuration.

Backed by Rough Country’s Limited Lifetime Replacement Warranty, this lift kit is built for dependable long-term performance.

Features & Benefits

• Provides 3.5" of lift for aggressive stance and added clearance
• Lifted knuckle design retains factory suspension geometry
• Improved CV axle positioning helps reduce boot wear
• Levels the front with the rear for a balanced stance
• Strut spacer or replacement strut options depending on configuration
• Fabricated rear lift blocks offer superior strength and durability
• Differential drop spacers help maintain proper driveline angles
• Differential skid plate included for added protection
• Includes Premium shock absorbers
• Compatible with additional Rough Country shock upgrades
• Maintains ride quality for daily driving and off-road use
• Backed by Rough Country Limited Lifetime Replacement Warranty

What’s Included

• Strut spacers or replacement struts
• Lifted knuckles
• Differential drop spacers
• Differential skid plate
• Hardware
• 3" fabricated lift blocks
• U-bolts
• Hardware
• (2) Premium shock absorbers