Carli heavy-duty multi-rate rear coil springs for 2009–2018 Ram 1500 4x4 provide approximately 0.25"–0.5" of rear lift depending on configuration and are built for a constant 500 lb bed load. Progressive-rate springs suit customers carrying overland gear, bed slides or tool boxes, delivering improved handling under load. Finished in durable black powdercoat and specifically not compatible with factory air-ride trucks.
Carli 09-18 Ram 1500 0.5in Lift Rear Multi Rate Coil Spring Kit Hd +500lbs Constant Load