AST Suspension Lowering Springs (40mm/40mm) - 1972-1982 Mercedes-Benz SL-Class 350SL/350SLC/380SL/380SLC/420SL/420SLC/450SL/450SLC (W107R) spl-parts-fks-rear-knuckle-monoball-shock-bushings 1990 Honda Civic (EF)

1990 Honda Civic (EF)

1986 Jeep Wagoneer Base (SJ)

2015 Mercedes-Benz E-Class E350CDi/E350 BlueTEC/E500 Coupe (C207)

2015 Audi A6 Avant 2

AST Suspension Lowering Springs (40mm/40mm) - 1972-1982 Mercedes-Benz SL-Class 350SL/350SLC/380SL/380SLC/420SL/420SLC/450SL/450SLC (W107R) spl-parts-fks-rear-knuckle-monoball-shock-bushings 1990 Honda Civic (EF)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