Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. AA0220BG2T Nitrous switch

Nitrous switch

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1977-1986 Chevrolet K10

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. AA0220BG2T Nitrous switchUnlike our assist springs, our helper springs are specifically designed to have a minimal effect on the spring rate of the main coilover spring. Helper springs allow the spring to stay on mounted on the coilover perch when the shock is under negative or zero load, also known as droop travel. It is ideal to run helper springs on setups where you cannot preload the main spring due to height issues or when experiencing springs coming loose from the