StreetGRIPfront lowering coil springs improve thehandling, ride quality and stance ofyour 1964-1967GM A-Body muscle car including Chevelle, Malibu, GTO, 442, Lemans, Tempest, Skylark and Cutlass. StreetGRIP coil springs are CNC cold-wound from high tensile premium steel by then powder-coated for long-lasting, consistent operation. They feature a dual rate design which providesthe best of both worlds. The "soft" spring section helps your car to transition over small road irregularitieswith emphsis on comfort. Asthe springfurther compresses, such as duringhigh cornering loads, the designtransition to the firmer aka "stiff" spring rate. On the street and around our exclusive test track,RideTechworks in conjunctionwith Hyperco, ourtechnology partner, to develop the best A-body-specificdual rate springs for your car.