Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 50 lb. H762003M Grand National Hub Kit includes

Grand National Hub Kit includes bearings

000 RPM (can be extended to 10

2001-2016 Chevrolet Express 2500

1968-1970 Chevrolet C20 Suburban

Air Filter Housing Adapter

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 50 lb. H762003M Grand National Hub Kit includesUnlike 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