Application: Fit for 1999 - 2007 Chevrolet Silverado 1500 (Classic NBS Body Only) 2WD / 4WD V8 ONLY Fit for 1999 - 2007 GMC Sierra 1500 (Classic NBS Body Only) 2WD / 4WD V8 ONLY Non-HD Only Specification: Type: Drop Coils/lowering springs Lowering height: 3" Material: （55CrSi） steel Finish: powder-coated Spring length: 345 mm Spring rate: 20 kg/mm (1119.95 lb/in) Package included: 2x Front drop coils Dimension: 40*35*23 cm Weight: 15.2 kg Feature: Chromium-silicon cold-wound structure with high tensile strength and resilience. Powder coating for corrosion resistance Lower the center of gravity, reduce cornering roll, and increase vehicle stability Give your vehicle an aggressive standce Notice： California Prop 65 Warning Code: MXR02FXSY

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