This Firestone Industrial Coil-Rite (TM) Helper Spring Kit is designed to fit inside coil spring of your vehicle and maintain from 500 to 1,000 pounds of leveling capacity. With polyurethane air springs it is adjustable from 5 to 35 PSI. The kit includes everything needed for installation.

Attention California Residents (Prop 65):
This product can expose you to chemicals Chromium (hexavalent compounds), which is (are) known to the State of California to cause birth defects or other reproductive harm.