AST Suspension Lowering Springs (40mm/40mm TUV) - 1984-1993 Ford Sierra Hatchback (GBG) Model Y adjustable suspension upgrade built for

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AST Suspension Lowering Springs (40mm/40mm TUV) - 1984-1993 Ford Sierra Hatchback (GBG) Model Y adjustable suspension upgrade built forAST Lowering Springs for the 1984 1993 Ford Sierra (GBG) are manufactured from a premium high tensile chromium silicone wire which is handpicked by AST engineers for its quality and metal consistency. Each spring is cold wound and then heat treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated and then powder coated to outlast even the life of the vehicle.