Transportmaster suspension productClick here for R-Series Model Matrix

The new TransportMaster® line combines the durable R-Series drive axle air suspension with the latest air supply module the AirMaster®.

The system is a bolt-on upgrade to replace the factory leaf spring suspensions for a shuttle bus, ambulance, RV, and work truck applications with Ford, RAM, GM and EV chassis.

The R-Series was designed to improve ride quality, manage body height, and permit kneeling. The AirMaster is factory certified leak free, eliminates air-line freezing, and dramatically improves compressor life relative to legacy air supply systems.

The TransportMaster® will enhance vehicle productivity, driver comfort, and resale value. The outcome is an astounding 426 pounds lighter and has an acquisition cost of $2,200 less than the Liquid Spring CLASS® equivalent.

The TransportMaster® family of systems exceeds the 70% US content necessary to meet the 2020 Federal Transit Administration regulations for Buy America Content.

For more information on the TransportMaster® click here



  • Pre-assembled, modularized system with integrated air dryer
  • Proprietary CPU algorithm to eliminate unnecessary air compressor cycling
  • Self-leveling system to maintain optimal ride height regardless of load
  • Twin height control valves to maintain ride height side to side and increase roll stiffness


  • 100% certified leak free and airline freezing eliminated
  • Increases compressor life and minimizes parasitic power consumption; ideal for electric vehicle applications
  • Minimizes vibration and protects driveline components by maintaining optimal drive-shaft angle
  • Enhances the handling, safety, and value of the truck