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  • SumoSprings are a patented suspension product designed to enhance load carrying ability, stabilize sway, and improve overall driver control and ride comfort.
  • They are maintenance free, do not leak air, and do not require airlines or compressors.
  • SumoSprings are manufactured in a variety of heights, diameters and densities to support multiple front and rear applications.
  • They are manufactured from proprietary closed micro-cellular urethane providing a smooth and progressive spring rate.
  • Kits For Most Vehicles & Trailers

Video Presentation of What SumoSprings Are & Why They Will Help Your Vehicle
SumoSprings for Front of Vehicle

SumoSprings for Rear of Vehicle

Stable Load

Stable Load
  • Put Your Factory Leaf Springs Back To Work
  • Kits For Chevy, Dodge, Ford & GMC
Factory Springs With Stable Loads

Factory Springs without Stable Load

Roadmaster Active Suspension

The ultimate assist for vehicles with rear leaf spring suspension. RAS is the only suspension upgrade that converts basic "passive" leaf springs into mechanically "active" suspension. A system that instantly absorbs and dissipates load force energy resulting in significantly improved vehicle stability, balance, traction and control, with or without a load. Roadmaster Active Suspension adds critical strength to leaf springs but WILL NOT compromise ride quality. The patented design eliminates bottoming out, axle wrap and wheel hop, greatly improves road handling by reducing sway and dangerous body roll on cornering, and strengthens the rear leaf springs for towing or hauling maximum loads with maximum safety. Vehicles and fleets that consistently operate under load benefit from improved fuel efficiency, vehicle safety and load carrying capacity as well as reduced driver fatigue and extended tire and suspension component life. RAS is a simple retrofit to most every pickup truck and van with rear leaf springs, with up to a 1 1/2 ton capacity, and once installed no adjustments or maintenance is ever required. Truck With Roadmaster Active Suspension

Truck Without Roadmaster Active Suspension

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10677 W. Centennial Rd. #103
Littleton, CO 80127
1-877-66HITCH (664-4824)