The Firestone Coil-Rite rear air helper spring kit for 2010–2018 Dodge Ram 1500 (2WD/4WD) fits inside the rear coil springs to provide adjustable support for varying payloads. The kit includes air helper springs, supports, hardware, air line and inflation valves and requires no drilling. Using adjustable air pressure, it helps maintain vehicle level, improve braking and steering balance, and reduce tire wear.
Firestone Coil-Rite Air Helper Spring Kit Rear 10-18 Dodge RAM 1500 2WD/4WD (W237604185)