AST Suspension Lowering Springs (40mm/40mm) - 1974-1984 Mercedes-Benz SL-Class 280SL/280SLC/300SL (W107R) 525iT X Premium (SH) maintains alignment

X Premium (SH) maintains alignment angles and spring rates by greatly reducing body or chassis flex

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Part Number KCA382 Part Name Control Arm Bushing Vehicle 2009 Chevrolet HHR SS Panel Chassis Code Delta Installation Difficulty Difficult Installation Time (hrs) 2

AST Suspension Lowering Springs (40mm/40mm) - 1974-1984 Mercedes-Benz SL-Class 280SL/280SLC/300SL (W107R) 525iT X Premium (SH) maintains alignmentAST Lowering Springs for the 1974 1984 Mercedes Benz SL Class (W107R) 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