Designed for 14'-18' Ram 2500 with 6" & 8" BDS lifts. These kits utilize a commercial class 8 rolling lobe air spring. This design has proven to have a significantly improved adjustable ride quality over larger coils. We are seeking test trucks for person's interested in four corner air ride for 14'-18' Ram 2500's with various lift's or factory height applications. Please "CONTACT US" with any questions.