Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. 84501 Demolition Derby

Demolition Derby

Self-Etching Primer

0-16000 RPM

This heavy duty truck pan is designed for Ford 4WD trucks and vans with 351C

Swift Coil-Over Helper Spring - 2.5" ID x 5.0" Tall - 4 lb. 84501 Demolition DerbyUnlike 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