GMC Sierra 1500 Suspension Lift Kit - Rough Country - 4 Inch, AT4/Trailboss - 2025+ is the ultimate upgrade for your truck, designed to take your driving experience to new heights with its rugged yet accessible enhancements. Specifically crafted for the fourth-generation Sierra 1500 AT4 and Silverado 1500 Trailboss models that come with a factory 2-inch lift, this kit elevates your vehicle’s performance and adds a formidable presence both on and off the road.

The Rough Country 4-inch Suspension Lift Kit boasts an innovative design and meticulous construction that enhances your truck's capabilities without compromising ride quality. The kit achieves optimal lift while maintaining near-factory geometries, thanks to its durable steel knuckles, differential brackets, and drop cross members. These components work in harmony to reduce CV angles and provide the clearance needed to run up to 35” tires without further modifications. A combination of upper strut spacers ensures uncompromised strength and rigidity, while the rear is supported by blocks, shocks, and u-bolts, preserving factory-like geometry and ensuring a balanced lift.

Features

• Elevates vehicle with a 4-inch lift while maintaining factory-like geometry.
• High clearance crossmember design for optimal suspension dynamics.
• Constructed with cast knuckles for extreme durability.
• Retains stock track width with no strut disassembly required.
• Crafted from precision laser-cut materials using advanced CAD processes.
• Fabricated blocks offer enhanced strength and extended lifespan.
• Installation requires cutting and drilling; specifically fits LT Trail Boss, Custom Trail Boss, and AT4 models equipped with a 2-inch factory lift.

This Rough Country 4-inch lift kit can be installed within 8-10 hours, with minor cutting and the use of a strut compressor. It can be configured with different shock options, allowing you to choose from nitrogen-charged N3 shocks to Vertex reservoir shocks for a customized performance fit to your needs. Protected by a limited lifetime replacement warranty against manufacturer defects, this lift kit offers durability and peace of mind.

For any questions or further customization options, feel free to contact us at 512-982-9393 in Austin, Texas, or 562-981-6800 in the Los Angeles, California area. Our teams at both locations offer installation and customization services to help make your dream ride a reality.

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