 Class A – Ford F53 (16,000 – 22,000 GVWR*)
SumoSprings complement the original factory suspension generating a smoother ride in your coach. Our variable rate springs improve load carrying capacity and due to their proprietary material, function much like a shock absorber by insulating the “banging and jarring” effect resulting from impact with pot-holes, road expansion joints, uneven road surfaces, bridge on-ramps etc. Additionally, their constant engagement will reduce the amount of side-to-side body roll in your coach resulting in greater stability.
 Product Description
All SumoSprings utilize patented closed cell microcellular urethane formulated with exclusive additives. The resulting combination of proprietary raw material and engineered design produces a graduated spring rate curve, resulting in progressive compression under load and variable road conditions.
The SumoSprings are secured as part of the suspension system via steel brackets to the frame rail above and the factory leaf springs below. The closed cell microcellular urethane will compress up to 80% in height under load and will “stretch” up to 50% under expansion. This unique material pliability coupled with the progressive spring rate design is responsible for the improved ride comfort and stability.
Additionally, the material is extremely durable with excellent abrasion and cut resistance and performs in temperatures ranging from -25°F (-32°C) to 200°F (93°C).
NOTE: For temperatures consistently below 14°F (-10°C), use our "Cold Weather" SumoSprings.
Installation
- The kits ship complete with all necessary mounting hardware
- The installation process involves drilling holes in the rear frame rail (2 or 4 each side – depending on year of manufacture) to attach the supplied top brackets
- Typical installation time by a competent professional should be 2 hours or less.
- Please see the “Installation” link for more detailed instructions.
  
Part Number
- Order item # SSR-180.
- Please check the “Fit Chart” tab on this web site for your F53 chassis year model and any cautionary installation notes.
Price
Manufacturers suggested retail price:
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All SumoSprings kits are 100% manufactured
and assembled in the USA. |
*Load rating is per pair - Never exceed your vehicle Gross Vehicle Weight Rating (GVWR)
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