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Product #: 18638G Brand: Firestone
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  • Injection-molded, microcellular urethane
  • Base polymer developed specifically for the automotive environment
  • Low temperature flexibility to -63°C
  • High repeated compression resistance
  • Progressive load-deflection characteristics for smooth ride quality
  • 6 separate spring-geometry and stiffness combinations (not a one-size-fits-all solution)
  • Most Work-Rite kits are a no-drill design
  • End-user adjustable for the individual loading scenario using spacers provided in the kit
  • Installation requires only simple hand tools
  • No air pressure to monitor
  • Eliminates spring sag
  • Increases vehicle stability and reduce vehicle sway
  • Prevents "bottoming out"
  • Absorbs road shock
  • Maintenance free
  • Improves roll stability
  • Reduces suspension fatigue
  • Limited lifetime spring warranty
Everything is included for a quick, easy installation. Load assist springs, brackets, comprehensive instructions and all necessary mounting hardware. Complete installation in 30 to 40 minutes. The Work-Rite kit installs to the vehicle's frame and axle to assist the factory suspension. The factory suspension remains un-modified. Installation does not alter a vehicle's gross vehicle weight rating. Never exceed the manufacturer's GVWR.

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