4 Inch Lift Kit | AT4/Trailboss | Chevy/GMC 1500 (25-26)

Take your GM 1500 pickup to new heights with Rough Country’s 4-inch Suspension Lift, engineered for the 2025–2026 Chevy/GMC Sierra 1500 AT4 and Silverado 1500 Trail Boss. Designed to pair with the factory 2-inch kit, this lift delivers a bolder stance and enhanced off-road capability without compromising ride quality.

• Lift Height: Adds a full 4-inch suspension lift to increase ground clearance and improve off-road capability.
• Vehicle Compatibility: Specifically tuned for 2025–2026 Chevrolet Silverado 1500 and GMC Sierra 1500 AT4 / Trail Boss models.
• Preserved Geometry: Steel knuckles, differential brackets, and drop cross members maintain factory-like geometry while achieving extra height.
• Upper Strut Spacers: Built for uncompromised strength and rigidity to support the lifted suspension.
• Rear Geometry: Rear blocks, shocks, and U-bolts preserve a factory-like layout and handling characteristics.
• 35" Tire Capability: Sufficient clearance to run 35" tires without additional modifications.
• Shock Options: Configurable with Rough Country’s shock lineup—choose between nitrogen-charged N3 shocks or Vertex reservoir shocks to match your driving style.
• Installation: Requires minor cutting and a strut compressor; estimated 8–10 hours and can be completed at home for a practical DIY experience.
• Warranty: Covered by Rough Country’s Limited Lifetime Replacement Warranty against manufacturer defects.

This 4-inch lift isn’t just about a tougher look—it's about practical, real-world improvements. The design prioritizes preserving factory angles to minimize CV angle changes, so you gain height without sacrificing ride quality or predictable handling. Whether you’re tackling rocky trails or cruising city streets, you’ll enjoy a commanding stance, better approach/departure angles, and the option to equip up to 35" tires for enhanced traction and capability. Perfect for off-road enthusiasts who want a deliberate, durable upgrade with the flexibility to tailor shocks to their preferred ride characteristics.