Firestone Ride-Rite Manual Fill Rear Air Helper Spring Kit (99-04 F-250 Super Duty, Excluding 6.8L SuperCab w/ 8-Foot Bed)Find parts that fit my vehicle

Heavy-Duty Load Support. The Firestone Ride-Rite Manual Fill Rear Air Helper Spring Kit is designed to improve the load-carrying capacity, stability, and ride quality of your 1999 to 2004 F-250 Super Duty. Ideal for towing and hauling, this system delivers up to 5,000 pounds of support to reduce sag, enhance braking performance, and maintain level stance under load. Compatible with most in-bed hitches, it's the perfect solution for work or recreational use.

Construction and Appearance. This kit features durable, industrial-grade air springs engineered to perform under heavy loads and variable pressures. The manual fill system allows drivers to adjust air pressure between 5 and 100 PSI depending on cargo needs. With a no-drill design on most applications, the system integrates cleanly and effectively with factory suspension while preserving full bed utility.

Installation. Installation is moderately difficult and may require mechanical tools and experience. While no drilling is necessary for most setups, professional installation is recommended for optimal function and air line routing.

Warranty. This kit includes a limited lifetime warranty on air springs and a two-year warranty on hardware and components.

Application. This Firestone Ride-Rite Manual Fill Rear Air Helper Spring Kit fits 1999 to 2004 F-250 Super Duty models, excluding 6.8L SuperCab with 8-foot bed.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov