3 Inch Lift Kit | UCAs | M1 | w/ Overloads | Chevy/GMC 2500HD/3500HD (20-26)

Take Your GM HD Higher: Transform your truck with Rough Country's 3-inch Bolt-On Lift Kit, delivering aggressive good looks, added clearance, and unbeatable performance at an incredible value. This kit is engineered specifically for GM HD models to provide a perfect blend of strength, drivability, and style. Engineered for Easy Installation: Featuring a 100% bolt-on installation, this kit requires no cutting, drilling, or special tools, making it one of the easiest lift kits to install on the market. The fully reversible design also lets you return your truck to stock height at any time without hassle. Unmatched Strength and Geometry: At the heart of this kit are high-articulation forged solid aluminum upper control arms. Built with a one-piece design to eliminate weak welded points, these arms deliver superior strength and durability. Optimized axle geometry is maintained through differential drop brackets, keeping driveline angles in check to reduce wear while extending long-term performance. POM ball joints come pre-installed for quicker setup and smoother articulation, with the option to upgrade to a bold red finish for added style. Premium Ride Quality: This kit includes a set of forged torsion bar keys for uncompromising rigidity, as well as Rough Country's nitrogen-charged N3 shocks for improved performance on and off-road. For those looking to push performance even further, this kit is compatible with all shock options, including Rough Country's premium Vertex reservoir shocks. All-Inclusive, All-Around Performance: With everything you need right out of the box, this lift kit provides the clearance to run larger tires while delivering a clean, leveled stance from front to rear. Backed by Rough Country's Limited Lifetime Replacement Warranty, this kit is the perfect choice for truck owners who demand strength, reliability, and a factory-quality ride at a fraction of the cost.

Features

Simple Bolt-On Installation: Get your lift kit installed quickly with an easy, 100% bolt-on process, no special tools required.
No Cutting Required: Preserve your factory frame and components with a clean install that doesn't require any cutting.
Fully Reversible Design: Return to stock height anytime with a kit engineered for complete reversibility.
Optimized Axle Geometry: Differential drop brackets keep axle angles in check, reducing wear and improving long-term driveline performance.
High-Articulation Control Arms: Forged from solid aluminum for superior strength and durability, featuring a one-piece design with no welded weak points. POM ball joints provide smoother movement and easier installation, with the option to upgrade to a bold red finish.
Pre-Installed Ball Joints: Save valuable time with ball joints already pressed in and ready to perform.
Compatible with All Shock Options: Customize your ride with everything from nitrogen-charged N3 shocks to premium Vertex reservoirs for the ultimate performance.

Notes

Does NOT fit dually models. ONLY fits models equipped with a rear overload spring. Does NOT fit AT4X models as it is equipped with a 1.5-inch factory lift and Multimatic DSSV dampers. Does NOT fit ZR2 models as it is equipped with a 1.5-inch factory lift and Multimatic DSSV dampers.

Instructions

View Instructions

The Kaos Run Down

Fitment Year: 2020 2021 2022 2023 2024 2025 2026

Make: GMC

Model: Sierra 3500 HD

Submodel: AT4

Drive: 4WD