Swift Flat Wire Assist Spring - 60mm (2.37") (Sold Individually) Rate:4.0 kg/mm Special 6 inch right rear

Special 6 inch right rear spring used on the right rear corner of Dirt Modifieds

Comes with an adjustable lock nut giving you the ability to lock out the lower bump spring at the compression of your choosing allowing for a fully customizable true dual rate bump spring setup

which increases tensile strength

Swift's innovative designs have made us a staple in the performance tuning world

11 inch Free Length

Swift Flat Wire Assist Spring - 60mm (2.37") (Sold Individually) Rate:4.0 kg/mm Special 6 inch right rearFlat Wire Assist Spring 60mm (2. 37") comes with stack spring adapter (Sold Individually) Like our helper springs, the assist springs are designed to be fully compressed at static height. Every one of our assist springs compress to the exact same height. This allows drivers to change assist springs without resetting the perch on the coilovers so the ride height isn't affected. Heavier rates of assist springs over helper springs are used to fine tune