Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 100 lb. Nylon Insert Lock Nut Helps to increase the life

Helps to increase the life duration of the transmission system

0 build 32 or higher and ECU firmware 4

875" Stroke

2013 Toyota Sienna XLEVehicle Applications: 2004-2018 Toyota Sienna

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 100 lb. Nylon Insert Lock Nut Helps to increase the lifeUnlike 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