4WD Silverado, Sierra, Avalanche, Tahoe, Yukon, Suburban 1500 2" Leveling Kit

Zone Offroad torsion keys for the Silverado, Sierra, Avalanche, Tahoe, Yukon, Suburban bolt to the factory location. These keys are made in the USA and are 100% resonant frequency tested to ensure a solid casting. Once tested the torsion bar keys are then CNC machined. Front shocks are optional.

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