Firestone announced today, May 16, 2014, that after 6 years of production they have decided to discontinue offering the R4Tech air suspension product.
If you purchased a Firestone R4 Kit they will continue to honor the original terms of the warranty. Firestone will also continue to provide technical and warranty assistance for existing customers. Firestone advised will have service and repair parts available for a minimum of 5 years.
At this time, Firestone will only offer Firestone air spring kits
and Firestone work-rite suspension kits for load support. Firestone R4 Techs were a complete air spring suspension for light duty trucks. The ones that we installed in our shop and that we shipped to customers all had positive feedback, but we understand the business side of things. If you have any questions about your R4 tech kit and need warranty or repair parts, you can call us at 1-800-358-4751.