1"-3" Adjustable Torsion key Truck 2011-2019 Chevy Silverado and GMC Sierra 2500HD 3500HD

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Buy this upper control arm and torsion key kit designed for 2011–2019 Chevy Silverado and GMC Sierra 2500HD and 3500HD 8-lug 4WD trucks. The control arms correct ball joint angles for 2–4 inch leveling lifts and are built from Q235 carbon steel plates with 1.25-inch DOM tubing for high structural strength. POM ball joints and polyurethane bushings improve wheel articulation and durability, while zerk fittings allow easy maintenance. The torsion keys provide an adjustable 1–3 inch front lift and use forged carbon steel with a black powder-coated finish for corrosion resistance. Installation requires no drilling, and the lift can be set to level the stance or match front and rear height differences while maintaining stable suspension geometry.