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SumoSprings Suspension Kit | SuperSprings | Rear | Ram

SKU SSR-306-47

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SumoSprings Solo helper spring SSR-306-47 for the Ram 1500 truck features a one-piece patented micro-cellular polyurethane foam design to produce a smooth ride and provide additional load support. The Solo design is attached to the vehicle on only one side.

Product Specs for SuperSprings SSR-306-47

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SuperSprings SSR-306-47 Details

SumoSpring Solo

The Solo Sumospring is a one piece component that is fixed to one side, used to replace or upgrade the vehicles factory bump stops. SumoSprings Solo is a one-piece, homogenous unit attached on only one side via various mechanisms. The Solo is manufactured in a variety of heights, diameters and densities to support multiple applications.

SumoSpring Solo

All SumoSprings are manufactured from proprietary closed microcellular urethane which yields a combination of uniquely distinctive properties. The materials density, tensile strength, elongation, tear resistance, rebound, and compression characteristics have been designed specifically to produce a smooth ride and provide additional load support.

Greater resistance with heavier loads = progressive load control

SumoSprings Helper Springs: Features & Benefits

  • Compresses up to 80% of their original height with full memory rebound
  • Expands up to 50% of their original height when connected both at the top and bottom
  • Easier initial compress allowing softer engagement; greater resistance with heavier loads = progressive load control
  • Will never leak and cause a loss of performance
  • Minimal lateral expansion under load will allow for operation in confined spaces
  • Highly resistant to oils, salts and UV rays
  • Temperature range of -25°F and 200°F
  • Maintenance free
  • Designed to “fit-it-and-forget-it”
  • Manufactured in the USA

SumoSpring Densities

In addition to the above mounting styles, SumoSprings are also available in three densities. SumoSpring helper springs densities are distinguished according to color as shown below, ranging from light and medium, to heavy duty. When multiple densities are available, pick the density that best suits your needs and ride preferences.

sumospring light and medium duty

The Blue-40 density traps more air in the millions of micro-cellular bubbles, making an air spring sufficient for light and medium duty performance.


sumo springs - light, medium, heavy duty

The Black-47 density evenly distributes the amount of urethane and air bubbles to produce an air spring sufficient for light, medium, and heavy duty performance.


sumo springs medium and heavy duty

The Yellow-54 density captures a smaller amount of air in the air spaces making a harder air spring sufficient for medium and heavy duty performance.



Vehicle Application Guide for SuperSprings SSR-306-47

The SSR-306-47 SumoSprings Suspension Kit | SuperSprings | Rear | Ram is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561. Browse the category SumoSprings - Airless Airbag Kits to view all vehicle makes and models.

YearMakeModelVehicle OptionInstallation Notes
2002 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2003 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2004 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2005 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2006 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2007 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive
2008 Dodge Ram 1500Fits 2 Wheel Drive; Fits 4 Wheel Drive

Customer Q&A - SuperSprings SSR-306-47


SuperSprings International was founded in 1996 and has developed a patented line of self-adjusting suspension stabilizers that solve many of the handling and suspension problems associated with loads carried by passenger vans, pickup trucks, minivans, and SUVs.

SuperSprings Internationals products give users extra loading and towing capacity and prevent rear-end sag without hardening the ride on vehicles having leaf spring rear suspension systems.

SuperSprings was developed for the American market with production initially established in California to serve the market on the West Coast. Marketing efforts have continued to expand and SuperSprings Helper Springs and SuperSway sway control are now distributed through a national dealer and distributor network throughout North America.

Product applications for SuperSprings have evolved from being solely for pickup trucks to a broad cross section of vehicles including SUVs, 15 passenger vans, minivans, and RVs including Class C motor homes and campers. SuperSprings have also been accepted by large-scale manufacturers in the van conversion business.

For more information, visit SuperSprings.

SuperSprings Warranty

5 Year Limited Warranty

On all SuperSprings products installed on non-commercial applications.

3 Year Limited Warranty

On all SuperSprings products installed on commercial applications, on all SumoSpring products and on all SuperCoils products.

2 Year Limited Warranty

On all SuperSway-Stops products.

What the warranty does not cover

Vehicle use in excess of GVWR, combined vehicle weights/ tow ratings or other OEM design specifications or limitations. Normal wear and tear, deterioration of spring shape or rating, alteration, product modification, improper installation or failure to maintain. Scratches or defects in product finishes (powder coating, paint, etc.) or damage due to shipping. Abnormal or misuse, including products used other than as recommended in the current SuperSprings™ application guide or the instructions. Racing or other vehicle competitions or contests. Accidents, impact by rocks, trees, obstacles or other aspects of the environment. Heavily loaded commercial use on unpaved road conditions.

You can view the full details of SuperSpring ’s warranty here.

How to get service

If a SuperSpring product fails as a result of a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.

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