AST Suspension Lowering Springs (40mm/40mm) - 1972-1982 Mercedes-Benz SL-Class 350SL/350SLC/380SL/380SLC/420SL/420SLC/450SL/450SLC (W107R) 240SX 1975 Toyota Corolla Base (E20-E100)

1975 Toyota Corolla Base (E20-E100)

2006 Audi A6 Avant FWD/Quattro

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75 Kg/mm Spring Rate - Rear 3

Part Number W31409 Part Name Shock Absorber Bushing Vehicle 1969-1971 Ford Mustang Boss 302 Chassis Code Fox Bushing Color Black Bushing Material Polyurethane Color Black Durometer 72 Installation Difficulty Moderate Installation Time (hrs) 1 Kit Contents 8 Bushings Material Polyurethane Vehicle Placement Front Wheel Alignment Required Yes Vehicle Fitment

AST Suspension Lowering Springs (40mm/40mm) - 1972-1982 Mercedes-Benz SL-Class 350SL/350SLC/380SL/380SLC/420SL/420SLC/450SL/450SLC (W107R) 240SX 1975 Toyota Corolla Base (E20-E100)AST Lowering Springs for the 1972 1982 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