Product Review
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 with superior damping properties.
- Vehicle Compatibility: These Yellow SumoSprings are specifically designed to fit 2014-2025 RAM ProMaster 1500/2500/3500 2WD models; the SSR‑313‑54 pairs seamlessly with your factory suspension system
- Reliable Load Support: Handles up to 2,800 lbs at 50% compression to keep your van steady and controlled under heavy loads; To maintain full memory rebound and long-term performance, avoid compressing beyond 55% of the spring’s original height
- Smoother Ride: The micro-cellular polyurethane springs compress progressively — soft when unloaded, firmer under load — delivering a smooth, comfortable ride without sacrificing control
- Rear Stability: Prevents rear sag and reduces body sway to keep your van level and stable under heavy loads or towing; Enhances safety and handling by minimizing roll, especially during sharp turns and in crosswinds, for greater driver confidence
- Built to Last: Made in the USA from weather-resistant polyurethane that resists UV, moisture, corrosion, and extreme temperatures; backed by a limited lifetime warranty
